/* ===========================================================================
   My Claim Chart
   Light theme is the default (audience 55+, mostly phones). Dark applies
   only under prefers-color-scheme: dark.
   Title style: near-black setup line + red hook line on light; white setup
   line + red hook line on dark.
   Type stays large. Contrast targets WCAG AA.
   =========================================================================== */

:root {
  --bg: #f4f6f8;
  --bg-elev: #ffffff;
  --border: #d5dbe3;
  --text: #12171d;
  --muted: #3a4451;          /* ~9:1 on white */
  --setup: #12171d;
  --hook: #c41212;           /* red, ~6:1 on white — passes AA for large text and body */
  --accent: #0b57d0;         /* links and the primary button */
  --on-accent: #ffffff;
  --nav-bg: rgba(255, 255, 255, 0.94);
  --btn-disabled-bg: #d5dbe3;
  --btn-disabled-text: #3a4451;
  --chip-bg: #fde8e8;
  --chip-text: #7a1010;
  --radius: 16px;
  --maxw: 1040px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f14;
    --bg-elev: #141a22;
    --border: #2a3542;
    --text: #f4f7fa;
    --muted: #c2ccd6;
    --setup: #ffffff;
    --hook: #ff4d4d;
    --accent: #4c8dff;
    --on-accent: #04121f;
    --nav-bg: rgba(11, 15, 20, 0.92);
    --btn-disabled-bg: #2a3542;
    --btn-disabled-text: #c2ccd6;
    --chip-bg: rgba(255, 77, 77, 0.14);
    --chip-text: #ffd9d9;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---- Nav ---- */
.nav { border-bottom: 1px solid var(--border); background: var(--nav-bg); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.brand .mark {
  width: 16px; height: 16px; border-radius: 4px; flex: none;
  background: linear-gradient(135deg, var(--accent), var(--hook));
}
.nav-links { display: flex; flex-wrap: wrap; justify-content: flex-end; }
.nav-links a { color: var(--muted); margin-left: 22px; font-weight: 600; text-decoration: none; }
.nav-links a:hover { color: var(--text); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 2px solid transparent; border-radius: 12px;
  padding: 16px 28px; font-size: 1.1rem; font-weight: 800;
  cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--accent); color: var(--on-accent); text-decoration: none; }
.btn:disabled,
.btn[disabled] {
  background: var(--btn-disabled-bg);
  color: var(--btn-disabled-text);
  cursor: not-allowed;
}

/* ---- Hero / post-style title ---- */
.hero { padding: 56px 0 40px; }
.post-title {
  font-size: clamp(1.9rem, 7vw, 3.2rem);
  line-height: 1.15;
  font-weight: 900;
  margin: 0 0 20px;
  letter-spacing: -0.4px;
}
.post-title .setup { display: block; color: var(--setup); }
.post-title .hook  { display: block; color: var(--hook); }
.lead { font-size: 1.25rem; color: var(--muted); max-width: 40ch; }
.hero .btn { margin-top: 28px; }

/* ---- Content pages (legal) ---- */
.page { padding: 48px 0 64px; }
.page h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); color: var(--setup); margin-top: 0; }
.page h2 { color: var(--setup); margin-top: 2em; font-size: 1.4rem; }
.page p, .page li { color: var(--muted); }
.page .placeholder {
  display: inline-block; background: var(--chip-bg);
  border: 1px solid var(--hook); color: var(--chip-text);
  padding: 2px 8px; border-radius: 6px; font-weight: 700; font-size: 0.85em;
}

/* ---- Footer ---- */
.site-footer { border-top: 1px solid var(--border); margin-top: 32px; padding: 32px 0 48px; background: var(--bg-elev); }
.legal-links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-bottom: 18px; }
.legal-links a { color: var(--muted); font-weight: 600; }
.disclaimer { color: var(--muted); font-size: 1rem; margin: 6px 0; }
.disclaimer a { font-weight: 700; }
.copyright { color: var(--muted); font-size: 0.95rem; margin-top: 16px; }

@media (max-width: 640px) {
  .hero { padding: 36px 0 28px; }
  .nav-links a { margin-left: 14px; }
}