/* Cadence blog — compact technical editorial */

:root {
    --bg-base: #0c0a09;
    --bg-surface: #1c1917;
    --bg-elevated: #292524;
    --accent-primary: #2dd4bf;
    --accent-glow: rgba(45, 212, 191, 0.18);
    --accent-border: rgba(45, 212, 191, 0.22);
    --text-primary: #fafaf9;
    --text-secondary: #d6d3d1;
    --text-muted: #a8a29e;
    --text-dim: #78716c;
    --text-ghost: #57534e;
    --border-subtle: rgba(168, 162, 158, 0.08);
    --border-rule: rgba(168, 162, 158, 0.14);
    --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg-base);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    font-feature-settings: "ss01", "ss02";
}

a { color: var(--accent-primary); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.mono {
    font-family: var(--font-mono);
    font-feature-settings: "calt" 0;
}

/* ─── nav bar ─── */
.nav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(12, 10, 9, 0.78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 12px;
}
.nav-brand {
    color: var(--text-primary);
    font-weight: 500;
    letter-spacing: 0.02em;
}
.nav-brand .accent { color: var(--accent-primary); }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 11px;
}
.nav-links a:hover { color: var(--text-primary); text-decoration: none; }
.nav-links a.active { color: var(--accent-primary); }

/* ─── article container ─── */
.article {
    max-width: 720px;
    margin: 0 auto;
    padding: 96px 24px 120px;
}

/* metadata strip */
.meta-strip {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 0;
}
.meta-strip span { display: inline-flex; align-items: center; gap: 8px; }
.meta-strip .sep {
    color: var(--text-ghost);
    margin: 0 -4px;
}
.meta-strip .tag {
    color: var(--accent-primary);
    border: 1px solid var(--accent-border);
    padding: 3px 8px;
    border-radius: 3px;
    text-transform: uppercase;
    background: rgba(45, 212, 191, 0.05);
}

/* article header */
.article-title {
    font-size: clamp(36px, 5.6vw, 56px);
    font-weight: 600;
    line-height: 1.04;
    letter-spacing: -0.025em;
    margin-bottom: 20px;
    max-width: 18ch;
}
.article-dek {
    font-size: 19px;
    color: var(--text-secondary);
    line-height: 1.55;
    max-width: 36ch;
    margin-bottom: 40px;
}
.byline {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-dim);
    padding-top: 20px;
    border-top: 1px solid var(--border-rule);
    margin-bottom: 56px;
    letter-spacing: 0.02em;
}
.byline .author { color: var(--text-secondary); }

/* article body */
.article-body p,
.article-body ul,
.article-body ol,
.article-body blockquote,
.article-body pre,
.article-body figure {
    font-size: 17px;
    line-height: 1.72;
    color: var(--text-secondary);
    margin-bottom: 1.4em;
}

.article-body p strong,
.article-body li strong { color: var(--text-primary); font-weight: 600; }

.article-body em { color: var(--text-primary); font-style: italic; }

.article-body h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.015em;
    margin: 64px 0 20px;
    line-height: 1.25;
    display: flex;
    align-items: baseline;
    gap: 14px;
}
.article-body h2 .section-num {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent-primary);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    flex-shrink: 0;
}

.article-body h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 36px 0 12px;
    letter-spacing: -0.005em;
}

.article-body ul, .article-body ol {
    padding-left: 24px;
}
.article-body li {
    margin-bottom: 0.5em;
    line-height: 1.7;
}
.article-body li::marker { color: var(--text-ghost); }

.article-body blockquote {
    border-left: 2px solid var(--accent-border);
    padding: 4px 0 4px 24px;
    margin: 32px 0;
    color: var(--text-primary);
    font-size: 18px;
    line-height: 1.6;
}

.article-body code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--bg-surface);
    border: 1px solid var(--border-rule);
    padding: 1px 6px;
    border-radius: 3px;
    color: var(--accent-primary);
}

.article-body pre {
    font-family: var(--font-mono);
    background: var(--bg-surface);
    border: 1px solid var(--border-rule);
    border-radius: 4px;
    padding: 18px 20px;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.65;
    color: var(--text-secondary);
}
.article-body pre code {
    background: transparent;
    border: 0;
    padding: 0;
    color: inherit;
}

.article-body hr {
    border: 0;
    border-top: 1px solid var(--border-rule);
    margin: 56px 0;
}

/* spec block: technical numbered figure */
.spec {
    border: 1px solid var(--border-rule);
    background: var(--bg-surface);
    padding: 24px 28px;
    margin: 32px 0;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-secondary);
    border-radius: 4px;
}
.spec-label {
    font-size: 10px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 12px;
    display: block;
}
.spec-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px dotted var(--border-rule);
}
.spec-row:last-child { border-bottom: 0; }
.spec-row .k { color: var(--text-dim); }
.spec-row .v { color: var(--text-primary); }

/* end-of-article footer */
.endmark {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-top: 56px;
    padding-top: 24px;
    border-top: 1px solid var(--border-rule);
}
.endmark .em-glyph {
    color: var(--accent-primary);
    margin-right: 12px;
}

.cross-links {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--border-rule);
}
.cross-links-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 20px;
}
.cross-links a {
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
    font-size: 15px;
    transition: padding 0.18s ease;
}
.cross-links a:hover {
    padding-left: 8px;
    text-decoration: none;
    color: var(--accent-primary);
}
.cross-links a .arrow {
    color: var(--text-ghost);
    margin-right: 12px;
    font-family: var(--font-mono);
}

/* ─── index page ─── */
.index-wrap {
    max-width: 980px;
    margin: 0 auto;
    padding: 96px 24px 120px;
}
.index-header {
    margin-bottom: 80px;
}
.index-eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 24px;
}
.index-title {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.05;
    margin-bottom: 20px;
}
.index-sub {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.55;
    max-width: 56ch;
}

.post-list {
    border-top: 1px solid var(--border-rule);
}
.post-row {
    display: grid;
    grid-template-columns: 110px 1fr 90px;
    gap: 32px;
    padding: 32px 0;
    border-bottom: 1px solid var(--border-rule);
    align-items: baseline;
    color: var(--text-primary);
    transition: padding 0.2s ease, background 0.2s ease;
}
.post-row:hover {
    padding-left: 16px;
    text-decoration: none;
    background: linear-gradient(90deg, rgba(45,212,191,0.04), transparent 60%);
}
.post-row:hover .post-title { color: var(--accent-primary); }
.post-date {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}
.post-main {}
.post-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent-primary);
    border: 1px solid var(--accent-border);
    padding: 2px 7px;
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    background: rgba(45, 212, 191, 0.05);
}
.post-title {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.015em;
    line-height: 1.25;
    margin-bottom: 8px;
    transition: color 0.18s ease;
}
.post-dek {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.55;
    max-width: 60ch;
}
.post-read {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-dim);
    text-align: right;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

/* footer */
.footer {
    border-top: 1px solid var(--border-subtle);
    padding: 48px 24px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 0.06em;
}
.footer a { color: var(--text-muted); margin: 0 12px; }
.footer a:hover { color: var(--accent-primary); text-decoration: none; }

/* responsive */
@media (max-width: 720px) {
    .article { padding: 64px 20px 96px; }
    .article-title { font-size: 36px; }
    .article-dek { font-size: 17px; }
    .article-body p, .article-body ul, .article-body ol { font-size: 16px; }
    .article-body h2 { font-size: 22px; flex-wrap: wrap; }
    .post-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    .post-read { text-align: left; }
    .index-wrap { padding: 64px 20px 96px; }
    .nav-links { gap: 18px; }
    .nav-links a { font-size: 10px; }
}

/* selection */
::selection {
    background: rgba(45, 212, 191, 0.32);
    color: var(--text-primary);
}