/* guides.css — shared shell for the free public study guides (guides.html + guide-*.html).
   Same light "ledger" tokens as index.html (Fraunces / Libre Franklin / IBM Plex Mono;
   navy + gold + ledger-green on paper). These pages are the SEO / free-content funnel:
   each one teaches a real topic, then points to the free sampler and Chapter 1. */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --navy:#0B2545; --navy-2:#123561; --gold:#C9A227; --gold-ink:#7d5e10;
  --green:#1E5C45; --green-ink:#1a5540; --green-tint:#E9F1EC; --bad:#b4322a;
  --paper:#F6F1E7; --paper-2:#EFE8D9; --card:#FFFFFF;
  --ink:#16233b; --ink-soft:#4a5568; --ink-dim:#6c7788;
  --rule:rgba(11,37,69,.14); --rule-strong:rgba(11,37,69,.24); --rule-faint:rgba(11,37,69,.045);
  --gold-tint:rgba(201,162,39,.10); --gold-line:rgba(201,162,39,.42);
  --border:rgba(11,37,69,.16); --white:#fff;
  --serif:'Fraunces',Georgia,serif;
  --sans:'Libre Franklin',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;
  --rule-h:34px;
}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans); color:var(--ink); background-color:var(--paper);
  background-image:repeating-linear-gradient(to bottom,transparent 0,transparent calc(var(--rule-h) - 1px),
    var(--rule-faint) calc(var(--rule-h) - 1px),var(--rule-faint) var(--rule-h));
  line-height:1.65; font-size:16.5px; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
::selection{background:var(--gold);color:var(--navy)}
a{color:var(--navy);text-underline-offset:3px;text-decoration-color:var(--gold-line)}
a:hover{text-decoration-color:var(--gold)}
strong{color:var(--navy)}

/* top bar */
.topbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:12px clamp(16px,4vw,48px);background:rgba(246,241,231,.96);
  border-bottom:1px solid var(--rule-strong);backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.mark{width:38px;height:38px;border-radius:8px;background:var(--navy);color:var(--gold);
  font-family:var(--serif);font-weight:700;display:flex;align-items:center;justify-content:center}
.brand-name{font-size:.8rem;color:var(--ink-soft);line-height:1.25}
.brand-name b{color:var(--navy);display:block;font-size:.9rem}
.topbar nav{display:flex;align-items:center;gap:18px}
.topbar nav a{font-size:.85rem;color:var(--ink-soft);text-decoration:none;font-weight:600}
.topbar nav a:hover{color:var(--navy)}
.topbar nav a.cta{background:var(--gold);color:var(--navy);padding:8px 14px;border-radius:4px}
@media (max-width:640px){ .topbar nav a.hide-sm{display:none} .brand-name{display:none} }

/* article */
main{max-width:780px;margin:0 auto;padding:clamp(28px,6vw,56px) 16px 72px}
.crumbs{font-family:var(--mono);font-size:.75rem;letter-spacing:.04em;color:var(--ink-dim);margin-bottom:18px}
.crumbs a{color:var(--ink-dim)}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-ink);font-weight:600}
h1{font-family:var(--serif);font-weight:700;color:var(--navy);font-size:clamp(1.9rem,5vw,2.7rem);line-height:1.12;margin:8px 0 14px;letter-spacing:-.01em}
.lede{font-size:1.1rem;color:var(--ink-soft);max-width:62ch}
.byline{margin-top:16px;font-size:.85rem;color:var(--ink-dim);border-top:1px solid var(--rule);padding-top:12px}
h2{font-family:var(--serif);font-weight:600;color:var(--navy);font-size:1.5rem;line-height:1.25;margin:44px 0 12px;
  padding-top:14px;border-top:2px solid var(--navy)}
h2 .n{font-family:var(--mono);font-size:.8rem;color:var(--gold-ink);font-weight:600;display:block;letter-spacing:.1em;margin-bottom:4px}
h3{font-size:1.05rem;color:var(--navy);margin:26px 0 8px}
p,ul,ol{margin:0 0 14px}
ul,ol{padding-left:1.3em}
li{margin:4px 0}

.toc{background:var(--card);border:1px solid var(--rule);border-radius:8px;padding:16px 20px;margin:28px 0}
.toc b{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim)}
.toc ol{margin:8px 0 0}

.callout{background:var(--gold-tint);border-left:3px solid var(--gold);padding:14px 16px;border-radius:0 6px 6px 0;margin:18px 0}
.callout.warn{background:#fbeceb;border-left-color:var(--bad)}
.callout.ok{background:var(--green-tint);border-left-color:var(--green)}
.callout p:last-child{margin:0}

/* ledger tables */
.tbl{width:100%;overflow-x:auto;margin:16px 0 20px;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:520px;background:var(--card);font-size:.9rem}
th,td{border-bottom:1px solid var(--rule);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--navy);color:#fff;font-weight:600;font-size:.8rem;letter-spacing:.02em}
td.num,th.num{text-align:right;font-family:var(--mono);white-space:nowrap}
tr.sub td{background:var(--paper-2);font-weight:700;color:var(--navy)}
tr.hl td{background:var(--green-tint)}

/* journal entry block */
.je{font-family:var(--mono);font-size:.86rem;background:var(--card);border:1px solid var(--rule);border-radius:6px;
  padding:12px 14px;margin:10px 0 16px;overflow-x:auto}
.je .row{display:grid;grid-template-columns:minmax(0,1fr) 7.5em 7.5em;gap:8px;min-width:420px}
.je .row.cr span:first-child{padding-left:2em}
@media (max-width:480px){ .je{font-size:.78rem;padding:10px} .je .row{grid-template-columns:minmax(0,1fr) 5.2em 5.2em;min-width:0} .je .row.cr span:first-child{padding-left:1.2em} }
.je .row span:nth-child(2),.je .row span:nth-child(3){text-align:right}
.je .memo{color:var(--ink-dim);font-style:italic;font-family:var(--sans);font-size:.82rem;margin-top:4px}

/* self-check */
details{background:var(--card);border:1px solid var(--rule);border-radius:6px;padding:12px 14px;margin:10px 0}
summary{cursor:pointer;font-weight:600;color:var(--navy)}
details[open] summary{margin-bottom:8px}

/* calls to action */
.cta-card{margin:44px 0 0;background:var(--navy);color:#EAF0F8;border-radius:10px;padding:24px 22px}
.cta-card h2{border:0;color:#fff;margin:0 0 8px;padding:0;font-size:1.35rem}
.cta-card p{color:rgba(234,240,248,.8)}
.cta-card .btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.btn{display:inline-block;padding:11px 18px;border-radius:4px;font-weight:700;text-decoration:none;font-size:.92rem}
.btn.gold{background:var(--gold);color:var(--navy)}
.btn.line{border:1px solid rgba(234,240,248,.45);color:#fff}
.btn:hover{filter:brightness(1.05)}

.related{margin-top:36px}
.related ul{list-style:none;padding:0;display:grid;gap:8px}
.related a{display:block;background:var(--card);border:1px solid var(--rule);border-radius:6px;padding:12px 14px;text-decoration:none}
.related a:hover{border-color:var(--gold)}
.related small{display:block;color:var(--ink-dim)}

/* guide index cards */
.cards{display:grid;gap:14px;margin-top:26px}
.card{display:block;background:var(--card);border:1px solid var(--rule);border-top:3px solid var(--gold);border-radius:8px;
  padding:18px 20px;text-decoration:none;color:var(--ink)}
.card:hover{border-color:var(--gold);box-shadow:0 10px 24px -18px rgba(11,37,69,.6)}
.card .eyebrow{font-size:.7rem}
.card h3{font-family:var(--serif);font-size:1.25rem;margin:6px 0 6px}
.card p{margin:0;color:var(--ink-soft);font-size:.93rem}

/* email opt-in (assets/lead.js) */
.lead-form{margin:28px 0 0;padding:20px 22px;background:var(--white);border:1px solid var(--border);border-left:3px solid var(--gold);border-radius:10px}
.lead-form h3{font-size:1.05rem;color:var(--navy);margin:0 0 4px}
.lead-form p{color:var(--ink-soft);font-size:.88rem;margin:0 0 12px}
.lead-row{display:flex;gap:8px;flex-wrap:wrap}
.lead-row input{flex:1 1 220px;min-width:0;padding:11px 12px;border:1px solid var(--border);border-radius:8px;font:inherit}
.lead-row button{flex:0 0 auto;padding:11px 16px;border:0;border-radius:8px;background:var(--navy);color:#fff;font:inherit;font-weight:700;cursor:pointer}
.lead-row button:disabled{opacity:.6;cursor:default}
.lead-consent{display:flex;gap:8px;align-items:flex-start;margin-top:10px;font-size:.8rem;color:var(--ink-soft);line-height:1.5}
.lead-consent input{margin-top:3px;flex:0 0 auto}
.lead-msg{margin:10px 0 0 !important;font-weight:600;font-size:.88rem !important}
.lead-msg:empty{display:none}

/* footer */
footer{background:var(--navy);color:rgba(234,240,248,.75);text-align:center;font-size:.82rem;padding:32px 16px;line-height:1.8}
footer .f-brand{font-family:var(--serif);color:#E6C463;font-size:1.05rem;margin-bottom:4px}
footer a{color:#E6C463}
.legal-line{margin-top:12px;line-height:1.9;font-size:.78rem;opacity:.85}
.legal-line a{color:inherit;text-decoration:underline;text-underline-offset:2px}
.legal-line .op{display:block;margin-top:4px}