/* Shared styles for Sift's static content pages (guide, answer pages).
   Mirrors the app's editorial monochrome UI: same tokens, logo, masthead,
   uppercase letter-spaced labels, hairline rules, white primary buttons. */
:root {
  --bg: #0a0a0a;
  --panel: #0c0c0c;
  --rule: #242424;
  --rule-soft: #1a1a1a;
  --text: #f4f4f2;
  --muted: #8c8c88;
  --faint: #5a5a57;
  --on: #ffffff;
  --radius: 4px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, ui-sans-serif, system-ui, -apple-system, Arial, sans-serif;
  line-height: 1.65;
  font-size: 16px;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 26px 24px 96px; }

/* Masthead — matches the app exactly */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 8px;
}
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.logo {
  width: 36px; height: 36px; flex: none;
  display: block;
}
.brand-name { display: block; color: var(--text); font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
.brand-tag { display: block; color: var(--muted); font-size: 12px; margin-top: 1px; }
.wordmark-img { display: block; height: 26px; width: auto; margin-bottom: 3px; }
.mast-nav { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.mast-nav a { color: var(--muted); text-decoration: none; }
.mast-nav a:hover { color: var(--text); }

/* Buttons — app's .btn / .btn.primary */
.btn {
  border: 1px solid var(--rule); background: transparent; color: var(--text);
  padding: 9px 16px; border-radius: var(--radius);
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em;
  text-decoration: none; display: inline-block; cursor: pointer;
}
.btn.primary { background: var(--on); color: #000; border-color: var(--on); }
.btn.primary:hover { background: #d8d8d4; }
.cta { padding: 13px 22px; margin: 6px 0; }

/* Type — editorial */
.eyebrow { font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--faint); margin: 40px 0 0; }
h1 { font-size: 34px; line-height: 1.18; letter-spacing: -0.02em; margin: 12px 0 0; font-weight: 600; }
.lede { font-size: 19px; color: #d6d6d2; margin-top: 18px; }
h2 { font-size: 22px; letter-spacing: -0.01em; margin: 44px 0 6px; padding-top: 26px; border-top: 1px solid var(--rule); font-weight: 600; }
h3 { font-size: 17px; margin: 24px 0 4px; font-weight: 600; }
p, li { color: #c8c8c4; }
ul, ol { padding-left: 20px; }
li { margin: 6px 0; }
a { color: var(--text); }
strong { color: var(--text); }

/* Numbered step — mirrors the app's audit-trail / left-rule motif */
.step { border-left: 2px solid var(--on); padding-left: 16px; margin: 22px 0; }
.step .n { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.note { color: var(--muted); font-size: 14px; border: 1px solid var(--rule); border-radius: var(--radius); padding: 14px 16px; margin: 20px 0; background: var(--panel); }
.related { margin-top: 16px; }
.related a { display: block; color: var(--text); padding: 10px 0; border-bottom: 1px solid var(--rule-soft); text-decoration: none; }
.related a:hover { color: var(--muted); }
footer { margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--rule); color: var(--faint); font-size: 13px; }
footer a { color: var(--muted); }

/* Pipeline flow diagram */
.flow { display: flex; flex-wrap: wrap; gap: 8px; margin: 28px 0; }
.flow-step {
  flex: 1 1 0; min-width: 92px;
  border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 14px 10px; text-align: center; background: var(--panel);
}
.flow-step .fn { display: block; font-size: 22px; font-weight: 600; color: var(--on); line-height: 1; }
.flow-step .ft { display: block; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }

/* Before / after table */
.ba { border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; margin: 24px 0; }
.ba-row { display: grid; grid-template-columns: 1fr 24px 1fr; align-items: center; gap: 10px; padding: 12px 16px; border-top: 1px solid var(--rule-soft); }
.ba-row:first-child { border-top: none; }
.ba-head { background: var(--panel); }
.ba-head span { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.ba-before { color: var(--muted); font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; }
.ba-arrow { color: var(--faint); text-align: center; }
.ba-after { color: var(--text); font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; }

/* Merge visual (golden record) */
.merge { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin: 24px 0; }
.merge-col { display: flex; flex-direction: column; gap: 6px; }
.merge-card { border: 1px solid var(--rule); border-radius: var(--radius); padding: 8px 12px; font-size: 12px; color: var(--muted); font-family: ui-monospace, Menlo, monospace; background: var(--panel); }
.merge-card.win { border-color: var(--on); color: var(--text); }
.merge-arrow { color: var(--faint); font-size: 20px; }

@media (max-width: 560px) {
  .masthead { flex-direction: column; align-items: flex-start; gap: 14px; }
  h1 { font-size: 28px; }
  .flow-step { min-width: 72px; }
}