/* Shared styles for the static pages (case study, notes, 404). Dark, single theme to match the main site. */
:root { --bg: #030604; --ink: #e4f2e9; --muted: #86a091; --soft: #b6cdbf; --green: #3dff8f; --line: rgba(61,255,143,.22); --panel: rgba(6,18,11,.7);
  --display: 'Chakra Petch', 'Readex Pro', system-ui, sans-serif; --body: 'Readex Pro', system-ui, sans-serif; --mono: 'JetBrains Mono', ui-monospace, monospace; color-scheme: dark; }
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body { font-family: var(--body); font-size: 17px; line-height: 1.75; font-weight: 300; -webkit-font-smoothing: antialiased;
  background-image: linear-gradient(rgba(61,255,143,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(61,255,143,.035) 1px, transparent 1px); background-size: 48px 48px; }
html[dir='rtl'] { --display: 'Readex Pro', system-ui, sans-serif; }
a { color: var(--green); text-underline-offset: 3px; }
.bar { position: sticky; top: 0; z-index: 5; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px clamp(16px, 4vw, 48px); background: rgba(3,6,4,.92); border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 13px; }
.bar a { text-decoration: none; }
.bar .logo { color: var(--ink); font-size: 16px; } .bar .logo b { color: var(--green); font-weight: 500; }
.bar nav { display: flex; gap: 16px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 56px clamp(16px, 4vw, 32px) 80px; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--green); margin: 0 0 14px; }
html[dir='rtl'] .eyebrow { font-family: var(--body); letter-spacing: 0; font-size: 14px; }
h1 { font-family: var(--display); font-weight: 600; font-size: clamp(32px, 5.4vw, 54px); line-height: 1.08; letter-spacing: -.01em; margin: 0 0 18px; text-wrap: balance; }
html[dir='rtl'] h1 { line-height: 1.35; letter-spacing: 0; }
h2 { font-family: var(--display); font-weight: 600; font-size: 26px; line-height: 1.25; margin: 48px 0 12px; }
h3 { font-size: 18px; font-weight: 600; margin: 28px 0 6px; }
p { margin: 0 0 16px; color: var(--soft); }
.lead { font-size: 20px; color: var(--ink); }
.meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1px; margin: 28px 0 8px; background: var(--line); border: 1px solid var(--line); }
.meta div { background: var(--bg); padding: 12px 14px; }
.meta dt { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
html[dir='rtl'] .meta dt { font-family: var(--body); letter-spacing: 0; font-size: 13px; }
.meta dd { margin: 4px 0 0; font-size: 14px; color: var(--ink); font-weight: 400; }
ul, ol { padding-inline-start: 22px; color: var(--soft); } li { margin: 6px 0; } li::marker { color: var(--green); }
strong { color: var(--ink); font-weight: 500; }
figure { margin: 28px 0; } figure img { width: 100%; height: auto; display: block; border: 1px solid var(--line); }
figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; }
pre { background: rgba(2,8,5,.9); border: 1px solid var(--line); padding: 16px; overflow-x: auto; font-family: var(--mono); font-size: 13px; line-height: 1.6; color: #cfe6d7; direction: ltr; text-align: left; }
code { font-family: var(--mono); font-size: .9em; color: var(--green); }
.callout { border: 1px solid rgba(61,255,143,.45); background: rgba(61,255,143,.05); padding: 16px 18px; margin: 24px 0; }
.callout p:last-child { margin: 0; }
.diagram { overflow-x: auto; border: 1px solid var(--line); background: rgba(2,8,5,.7); padding: 12px; }
.diagram svg { display: block; min-width: 620px; width: 100%; height: auto; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; direction: ltr; }
html[dir='rtl'] .chips { justify-content: flex-end; }
.chips span { font-family: var(--mono); font-size: 12px; padding: 4px 9px; border: 1px solid var(--line); color: var(--ink); }
.cta { margin-top: 56px; padding: 22px; border: 1px solid var(--line); background: var(--panel); }
.btn { display: inline-block; margin-top: 8px; padding: 11px 18px; background: var(--green); color: #02140a; font-family: var(--mono); font-size: 13px; font-weight: 500; text-decoration: none; text-transform: uppercase; letter-spacing: .05em; }
html[dir='rtl'] .btn { font-family: var(--body); text-transform: none; letter-spacing: 0; font-size: 14px; }
.byline { font-family: var(--mono); font-size: 13px; color: var(--muted); margin-bottom: 32px; }
html[dir='rtl'] .byline { font-family: var(--body); }
.foot { text-align: center; font-family: var(--mono); font-size: 12px; color: #5d7867; padding: 30px 16px 40px; border-top: 1px solid var(--line); }
.foot p { color: inherit; margin: 0; }
@media (max-width: 600px) { .meta { grid-template-columns: 1fr; } }