/* ============================================================
   site.css — shared styling for Pickleball Swing Check content
   pages (learn articles, learn index, legal).
   Chosen look: terminal headings (IBM Plex Mono) · warm surface ·
   blue primary + yellow secondary accent · readable sans body.
   ============================================================ */
:root {
  --bg: #faf9f7;
  --surface: #ffffff;
  --surface-2: #f4f2ee;
  --ink: #15181d;
  --muted: #5b6470;
  --line: #ece8e1;
  --line-strong: #ddd7cc;

  --accent: #1b39c9;        /* blue — links, labels */
  --accent-fill: #2347ff;   /* blue — buttons */
  --accent-on: #ffffff;
  --accent-hover: #1736e6;
  --accent-2: #dcf64a;      /* yellow — secondary pop */

  --mono: 'IBM Plex Mono', ui-monospace, Menlo, Consolas, monospace;
  --body: 'Hanken Grotesk', system-ui, -apple-system, Segoe UI, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.65;
  font-size: 18px;            /* comfortable for older readers */
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent-2); color: var(--ink); }

main { max-width: 660px; margin: 0 auto; padding: 40px 22px 80px; }

/* ---- breadcrumb ---- */
.crumb {
  font-family: var(--mono);
  font-size: 13px; color: var(--muted);
  margin-bottom: 24px; letter-spacing: .01em;
}
.crumb a { color: var(--accent); }
.crumb .sep { opacity: .5; margin: 0 7px; }

/* ---- headings ---- */
h1 {
  font-family: var(--mono);
  font-size: 27px; line-height: 1.26; letter-spacing: -0.01em;
  font-weight: 700; margin-bottom: 18px; text-wrap: balance;
}
h2 {
  font-family: var(--mono);
  font-size: 14px; text-transform: uppercase; letter-spacing: .07em;
  color: var(--accent); margin: 34px 0 10px;
  display: flex; align-items: center; gap: 9px;
}
h2::before {
  content: ""; width: 18px; height: 3px; border-radius: 2px;
  background: var(--accent-2); flex: none;
}

p { margin: 0 0 15px; }
ul, ol { margin: 0 0 15px 22px; }
li { margin-bottom: 7px; }
li::marker { color: var(--accent); }
strong { font-weight: 700; }

a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1.5px; }
a:hover { color: var(--accent-hover); }
a:focus-visible, button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent-fill) 45%, transparent);
  outline-offset: 2px; border-radius: 4px;
}

/* ---- answer-first block (AEO) ---- */
.answer {
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--accent-fill);
  background: var(--surface);
  padding: 16px 18px;
  border-radius: 0 12px 12px 0;
  margin-bottom: 28px;
  font-size: 18px;
}
.answer p { margin: 0; }

/* ---- updated stamp (freshness signal) ---- */
.updated {
  font-family: var(--mono);
  font-size: 12px; color: var(--muted);
  margin: -10px 0 26px; letter-spacing: .02em;
}
.updated b { color: var(--accent); font-weight: 600; }

/* ---- cue line ---- */
.cue-line {
  background: var(--surface-2);
  border: 1px dashed var(--line-strong);
  border-radius: 10px; padding: 12px 15px;
  font-size: 17px;
}
.cue-line em { font-style: normal; font-weight: 700; }

/* ---- CTA to the tool ---- */
.cta-tool {
  display: inline-flex; align-items: center; gap: 9px;
  margin-top: 6px; min-height: 50px;
  background: var(--accent-fill); color: var(--accent-on);
  font-family: var(--mono); font-weight: 600; font-size: 15px;
  padding: 13px 20px; border-radius: 10px; text-decoration: none;
}
.cta-tool:hover { background: var(--accent-hover); color: var(--accent-on); }

hr { border: none; border-top: 1px dashed var(--line-strong); margin: 36px 0; }

/* ---- learn index list ---- */
.articles { list-style: none; margin-left: 0; display: grid; gap: 16px; }
.articles li {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 12px; padding: 16px 18px;
  transition: border-color .15s, transform .06s;
}
.articles li:hover { border-color: var(--line-strong); }
.articles a { font-family: var(--mono); font-weight: 600; font-size: 16px; }
.articles .tip { color: var(--muted); font-size: 15px; margin-top: 5px; }

.soon { color: var(--muted); font-size: 14px; font-family: var(--mono); margin-top: 18px; }

/* ---- in-article related links (cluster cross-links) ---- */
.related { list-style: none; margin: 6px 0 0; display: grid; gap: 8px; }
.related li { margin: 0; }
.related a { font-family: var(--mono); font-weight: 600; font-size: 15px; }
.related a::before { content: "\2192  "; color: var(--accent); }

/* ---- footer ---- */
footer {
  margin-top: 44px; font-size: 13px; color: var(--muted);
  font-family: var(--mono); line-height: 1.8;
}
footer a { color: var(--accent); }

/* ---- skip link ---- */
.skip { position: absolute; left: -999px; }
.skip:focus {
  left: 14px; top: 14px; background: var(--surface);
  padding: 8px 12px; border: 2px solid var(--accent-fill);
  border-radius: 8px; z-index: 20;
}

@media (max-width: 460px) {
  body { font-size: 17px; }
  h1 { font-size: 23px; }
  main { padding: 28px 18px 64px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }