/* ============================================================
   THE MONEY BASICS — shared stylesheet
   Identity: "modern exercise book" — graph-paper ground,
   highlighter accent, ledger-mono numerals.
   Re-skin: change --accent (pine) and --marker (highlighter).
   ============================================================ */

:root {
  /* Brand */
  --accent:        #1c5b41;   /* pine green — buttons, wordmark */
  --accent-ink:    #164a34;   /* darker pine — hover / links */
  --marker:        #dcf34a;   /* highlighter lime — "the important bit" */
  --marker-ink:    #191c16;   /* text sitting on the highlighter */

  /* Neutrals — faint cool paper, green-biased ink */
  --bg:            #f5f6f2;
  --surface:       #ffffff;
  --ink:           #191c16;
  --ink-soft:      #5a5f52;
  --line:          #e4e7dd;
  --grid:          #e9ece2;   /* graph-paper rule */

  --shadow:        0 1px 2px rgba(20,30,20,.04), 0 10px 30px rgba(20,40,25,.07);
  --radius:        14px;
  --max:           1080px;
  --font:      -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent:     #35b07c;
    --accent-ink: #58cd97;
    --marker:     #c7e33a;
    --marker-ink: #12140f;
    --bg:         #101310;
    --surface:    #181c16;
    --ink:        #eef1e8;
    --ink-soft:   #9aa08e;
    --line:       #2a2f26;
    --grid:       #20261e;
    --shadow:     0 1px 2px rgba(0,0,0,.3), 0 12px 34px rgba(0,0,0,.45);
  }
}
/* viewer toggle must win in both directions */
:root[data-theme="light"] {
  --accent:#1c5b41; --accent-ink:#164a34; --marker:#dcf34a; --marker-ink:#191c16;
  --bg:#f5f6f2; --surface:#fff; --ink:#191c16; --ink-soft:#5a5f52; --line:#e4e7dd; --grid:#e9ece2;
}
:root[data-theme="dark"] {
  --accent:#35b07c; --accent-ink:#58cd97; --marker:#c7e33a; --marker-ink:#12140f;
  --bg:#101310; --surface:#181c16; --ink:#eef1e8; --ink-soft:#9aa08e; --line:#2a2f26; --grid:#20261e;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

/* graph-paper ground */
.paper {
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 26px 26px;
  background-position: -1px -1px;
}

/* highlighter swipe — used on the words that matter */
.hl {
  background: var(--marker);
  color: var(--marker-ink);
  padding: 0 .12em;
  border-radius: 2px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* mono labels + figures = ledger texture */
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.eyebrow {
  display: inline-block; font-family: var(--font-mono);
  font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 18px;
}
.eyebrow::before { content: "// "; color: var(--accent); }

/* ---------- Header ---------- */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand {
  font-weight: 800; font-size: 19px; letter-spacing: -.02em; color: var(--ink);
  display: flex; align-items: baseline; gap: 2px;
}
.brand .dot { color: var(--accent); }
.nav { display: flex; gap: 26px; align-items: center; }
.nav a { color: var(--ink-soft); font-weight: 500; font-size: 15px; }
.nav a:hover { color: var(--ink); text-decoration: none; }
@media (max-width: 640px) { .nav a.hide-sm { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; font-weight: 700; font-size: 15px;
  padding: 12px 20px; border-radius: 9px; cursor: pointer;
  border: 1px solid transparent; transition: transform .08s ease, filter .15s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 3px solid var(--marker); outline-offset: 2px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink-soft); }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 60px; border-bottom: 1px solid var(--line); }
.hero h1 {
  font-size: clamp(36px, 6.4vw, 64px); line-height: 1.03;
  letter-spacing: -.035em; font-weight: 800; max-width: 16ch; text-wrap: balance;
}
.hero p.lead {
  font-size: clamp(17px, 2.2vw, 21px); color: var(--ink-soft);
  max-width: 54ch; margin: 24px 0 32px;
}
.hero .cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.trust { margin-top: 22px; font-size: 13px; color: var(--ink-soft); font-family: var(--font-mono); }

/* ---------- Sections ---------- */
section { padding: 66px 0; }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(26px, 4vw, 38px); letter-spacing: -.025em; line-height: 1.1; text-wrap: balance; }
.section-head p { color: var(--ink-soft); font-size: 18px; margin-top: 12px; }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 820px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow);
}
.card .idx { font-family: var(--font-mono); font-size: 12px; color: var(--accent); font-weight: 600; letter-spacing:.06em; }
.card h3 { font-size: 19px; letter-spacing: -.01em; margin: 10px 0 8px; }
.card p { color: var(--ink-soft); font-size: 15px; }

.feature-card {
  display: flex; gap: 28px; align-items: center;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow);
}
.feature-card .body { flex: 1; }
.feature-card .visual {
  flex: 0 0 190px; height: 150px; border-radius: 10px;
  background: var(--accent); color: var(--marker);
  display: grid; place-items: center; font-family: var(--font-mono); font-size: 15px; text-align:center;
  padding: 12px; line-height: 1.4;
}
@media (max-width: 640px) { .feature-card { flex-direction: column; align-items: stretch; } .feature-card .visual { flex-basis: auto; } }

/* ---------- Email capture ---------- */
.capture {
  background: var(--accent); color: #fff;
  border-radius: var(--radius); padding: 46px; box-shadow: var(--shadow); text-align: center;
}
.capture h2 { font-size: clamp(24px, 4vw, 34px); letter-spacing: -.02em; text-wrap: balance; }
.capture h2 .hl { color: var(--marker-ink); }
.capture p { color: rgba(255,255,255,.85); margin: 12px auto 24px; max-width: 46ch; }
.capture form { display: flex; gap: 10px; max-width: 460px; margin: 0 auto; flex-wrap: wrap; }
.capture input[type=email] {
  flex: 1; min-width: 220px; padding: 13px 16px; font-size: 16px;
  border: 1px solid transparent; border-radius: 9px; background: #fff; color: var(--ink);
}
.capture .btn-primary { background: var(--marker); color: var(--marker-ink); }
.capture .fine { font-family: var(--font-mono); font-size: 12px; margin-top: 14px; color: rgba(255,255,255,.8); }
.embed-box { max-width: 480px; margin: 0 auto 6px; background: #fff; border-radius: 12px; padding: 12px; min-height: 64px; }

/* ---------- Footer / disclaimer ---------- */
footer.site { border-top: 1px solid var(--line); padding: 40px 0; color: var(--ink-soft); font-size: 14px; }
footer.site .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer.site a { color: var(--ink-soft); }
.disclaimer {
  font-size: 12.5px; color: var(--ink-soft); background: var(--surface);
  border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin-top: 24px;
  font-family: var(--font-mono); line-height: 1.7;
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }