/* Notes from the desk — shared styles for /notes/ article pages.
   Same tokens/type as story.html; kept in one file so the articles stay
   lightweight. All URLs are ABSOLUTE (site lives at the domain root). */
:root {
  --bg: #08090d; --bg-card: #131722;
  --line: #1f2937; --line-soft: #2a3447;
  --ink: #f8fafc; --ink-2: #cbd5e1; --ink-3: #94a3b8; --ink-4: #76849d;
  --cyan: #06d4f8; --cyan-bright: #7be8fb; --cyan-bg: rgba(6,212,248,0.10);
  --magenta: #ec4899;
  --red-bright: #f87171; --green-bright: #34d399;
  --ai-grad: linear-gradient(90deg, var(--cyan), var(--magenta));
  --display: 'Bricolage Grotesque', sans-serif;
  --body: 'DM Sans', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --r-md: 6px; --r-lg: 10px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg);
  background-image: radial-gradient(ellipse 1200px 600px at 50% -200px, rgba(6,212,248,0.05), transparent 70%);
  background-attachment: fixed;
  color: var(--ink-2); font-family: var(--body); line-height: 1.75; font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); text-decoration: none; }
.wrap { max-width: 680px; margin: 0 auto; padding: 0 24px; }
.grad-text {
  background: var(--ai-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.nav { position: sticky; top: 0; z-index: 10; background: rgba(8,9,13,0.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-inner { max-width: 1120px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-weight: 800; letter-spacing: 0.08em; font-size: 13px; color: var(--cyan); }
.btn {
  display: inline-flex; align-items: center; font-family: var(--mono);
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em; padding: 10px 18px;
  border-radius: var(--r-md); border: 1px solid rgba(6,212,248,0.4);
  color: var(--cyan-bright); background: var(--cyan-bg);
}
.btn:hover { border-color: var(--cyan); }
article { padding: 72px 0 40px; }
.kicker { font-family: var(--mono); font-size: 11px; font-weight: 800; letter-spacing: 0.18em; color: var(--cyan); margin-bottom: 16px; }
.kicker a { color: inherit; }
h1 { font-family: var(--display); font-size: clamp(30px, 5vw, 44px); line-height: 1.1; color: var(--ink); letter-spacing: -0.02em; margin-bottom: 14px; }
.byline { font-family: var(--mono); font-size: 12px; color: var(--ink-4); margin-bottom: 40px; }
h2 { font-family: var(--display); font-size: 24px; color: var(--ink); margin: 44px 0 14px; letter-spacing: -0.01em; }
p { margin-bottom: 18px; }
strong { color: var(--ink); font-weight: 650; }
em { color: var(--ink-2); }
ul { margin: 0 0 18px 22px; }
li { margin-bottom: 10px; }
li::marker { color: var(--cyan); }
.pull {
  border-left: 3px solid var(--cyan); padding: 4px 0 4px 20px; margin: 28px 0;
  font-family: var(--display); font-size: 21px; line-height: 1.4; color: var(--ink);
}
.formula {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 14px 18px; font-family: var(--mono); font-size: 13px; color: var(--ink-2);
  margin: 0 0 18px; overflow-x: auto; white-space: nowrap;
}
.bands { list-style: none; margin-left: 0; font-family: var(--mono); font-size: 13.5px; }
.bands li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.bands b { display: inline-block; min-width: 118px; color: var(--ink); }
.cta-band { border-top: 1px solid var(--line); margin-top: 26px; padding: 34px 0 8px; }
.cta-band p { color: var(--ink-3); }
.more { border-top: 1px solid var(--line); margin-top: 26px; padding-top: 26px; }
.more-k { font-family: var(--mono); font-size: 11px; font-weight: 800; letter-spacing: 0.18em; color: var(--ink-4); margin-bottom: 12px; }
.more a { display: block; padding: 4px 0; }
footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 34px 0 44px; }
.foot-disclaimer { font-size: 12px; color: var(--ink-4); margin-bottom: 14px; }
.foot-links { font-family: var(--mono); font-size: 12px; color: var(--ink-4); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* hub page */
.hub-list { list-style: none; margin: 0; }
.hub-list li { margin: 0 0 14px; }
.hub-card { display: block; background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px 24px; transition: border-color 0.15s; }
.hub-card:hover { border-color: rgba(6,212,248,0.45); }
.hub-card h3 { font-family: var(--display); font-size: 20px; color: var(--ink); margin-bottom: 6px; }
.hub-card p { font-size: 14px; color: var(--ink-3); margin: 0; }