/* =============================================================================
   Passerine Finance — Article framework
   -----------------------------------------------------------------------------
   A reusable, publication-quality layout for long-form editorial articles.
   Loaded AFTER styles.css, so it inherits the site design tokens (--ink,
   --accent, --hairline, --surface, fonts, etc.) and only adds the editorial
   typography and components used by article pages and the Articles index.

   Used by:  articles.html  (the index)  and every individual article page.
   NOT used by the calculator pages — those keep styles.css only.
   ============================================================================= */

:root{
  /* Serif voice for headlines and body — a timeless newspaper feel.
     Georgia is a screen-tuned transitional serif available everywhere, so
     articles render identically with no web-font load. */
  --art-serif: Georgia, "Times New Roman", "Times", serif;

  /* Editorial measure (line length) and rhythm */
  --measure: 680px;        /* readable text column   */
  --measure-wide: 720px;   /* outer wrap incl. padding */
  --art-rule: var(--hairline-strong, #C2C8B8);
}

html, body{ max-width:100%; overflow-x:hidden; }
body{ background:var(--bg); }

/* ---------------------------------------------------------------------------
   1. Page shell
   ------------------------------------------------------------------------- */
.article-wrap{
  box-sizing:border-box;
  width:100%;
  max-width:var(--measure-wide);
  margin:0 auto;
  padding:24px 20px 80px;
}
/* The readable column. Figures and callouts also cap at --measure so nothing
   is ever wider than the body text. */
.col{ max-width:var(--measure); margin-left:auto; margin-right:auto; }

/* Slim "back to Articles" link that sits above the headline */
.article-toplink{
  font-family:var(--font-body);
  font-size:13px; font-weight:500;
  letter-spacing:.02em;
  color:var(--ink-3);
  display:inline-block;
  margin:4px 0 22px;
}
.article-toplink:hover{ color:var(--accent-2); text-decoration:none; }

/* ---------------------------------------------------------------------------
   2. Masthead — eyebrow, headline, subtitle, meta line
   ------------------------------------------------------------------------- */
.article-eyebrow{
  font-family:var(--font-body);
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:12px;
  font-weight:600;
  color:var(--accent-2);
  margin:0 0 16px;
}
.article-title{
  font-family:var(--art-serif);
  font-weight:700;
  color:var(--ink);
  line-height:1.1;
  letter-spacing:-.01em;
  font-size:clamp(31px, 5.2vw, 50px);
  margin:0 0 18px;
}
.article-subtitle{
  font-family:var(--art-serif);
  font-style:italic;
  font-size:clamp(18px, 2.3vw, 22px);
  line-height:1.5;
  color:var(--ink-2);
  margin:0 0 24px;
}

/* Newspaper-style meta rule: author · label · reading time, between hairlines */
.article-meta{
  font-family:var(--font-body);
  font-size:13px;
  color:var(--ink-3);
  border-top:1px solid var(--hairline);
  border-bottom:1px solid var(--hairline);
  padding:13px 0;
  margin:0 0 34px;
  display:flex; flex-wrap:wrap; align-items:center;
  gap:6px 12px;
}
.article-meta .author{ color:var(--ink); font-weight:600; }
.article-meta .sep{ color:var(--hairline-strong); }
.article-meta .evergreen{
  text-transform:uppercase; letter-spacing:.08em; font-size:11.5px; font-weight:600;
  color:var(--good);
}
.article-meta .readtime{ color:var(--ink-3); }

/* ---------------------------------------------------------------------------
   3. Body typography
   ------------------------------------------------------------------------- */
.article-body{
  font-family:var(--art-serif);
  font-size:19.5px;
  line-height:1.72;
  color:var(--ink);
}
.article-body p{ margin:0 0 22px; }
.article-body a{ color:var(--accent-2); text-decoration:underline; text-underline-offset:2px; }

/* Drop cap on the opening paragraph */
.article-body .lead::first-letter{
  float:left;
  font-family:var(--art-serif);
  font-weight:700;
  font-size:66px;
  line-height:50px;
  padding:5px 10px 0 0;
  color:var(--ink);
}

/* Section kicker + heading */
.section-label{
  font-family:var(--font-body);
  text-transform:uppercase;
  letter-spacing:.13em;
  font-size:12px;
  font-weight:600;
  color:var(--accent-2);
  margin:44px 0 8px;
}
.article-body h2{
  font-family:var(--art-serif);
  font-weight:700;
  font-size:27px;
  line-height:1.22;
  color:var(--ink);
  margin:6px 0 18px;
}
.article-body h3{
  font-family:var(--art-serif);
  font-weight:700;
  font-size:21px;
  line-height:1.3;
  color:var(--ink);
  margin:30px 0 12px;
}

/* Centered ornamental section divider (three dots) */
.divider{
  text-align:center;
  color:var(--art-rule);
  letter-spacing:.6em;
  margin:38px auto;
  max-width:var(--measure);
  font-size:14px;
}
.divider::before{ content:"\2022\00a0\00a0\2022\00a0\00a0\2022"; }

/* ---------------------------------------------------------------------------
   4. Pull quote + callout box
   ------------------------------------------------------------------------- */
.pull{
  font-family:var(--art-serif);
  font-weight:700;
  font-size:clamp(22px, 3.1vw, 29px);
  line-height:1.32;
  color:var(--ink);
  border-left:3px solid var(--accent);
  padding:6px 0 6px 22px;
  margin:36px auto;
  max-width:var(--measure);
}

/* Callout / aside — a tinted box for definitions, key facts, "in brief" */
.callout{
  background:var(--accent-soft);
  border:1px solid var(--hairline);
  border-left:3px solid var(--accent);
  border-radius:var(--radius-md);
  padding:18px 20px;
  margin:30px auto;
  max-width:var(--measure);
  font-family:var(--font-body);
}
.callout .callout-title{
  font-family:var(--font-head);
  font-size:13px; text-transform:uppercase; letter-spacing:.08em;
  color:var(--accent-2); margin:0 0 8px; font-weight:600;
}
.callout p{ font-size:15px; line-height:1.6; color:var(--ink-2); margin:0 0 10px; }
.callout p:last-child{ margin-bottom:0; }

/* ---------------------------------------------------------------------------
   5. Figures (charts & illustrations) — never wider than the text column
   ------------------------------------------------------------------------- */
figure.fig{
  margin:36px auto;
  width:100%;
  max-width:var(--measure);
}
.fig-head{ font-family:var(--font-body); max-width:var(--measure); margin:0 auto 4px; }
.fig-kicker{
  text-transform:uppercase; letter-spacing:.1em;
  font-size:11.5px; font-weight:700; color:var(--ink-3);
}
.fig-title{
  font-family:var(--font-head);
  font-size:20px; font-weight:600; color:var(--ink);
  line-height:1.2; margin:2px 0;
}
.fig-sub{
  font-family:var(--font-body);
  font-size:14px; color:var(--ink-2); line-height:1.45; margin:0 0 14px;
}
figcaption{
  font-family:var(--font-body);
  font-size:13px; color:var(--ink-3); line-height:1.55;
  max-width:var(--measure); margin:10px auto 0;
  padding-top:10px; border-top:1px solid var(--hairline);
}

.panel{
  background:var(--surface);
  border:1px solid var(--hairline);
  border-radius:var(--radius-md);
  padding:16px 16px 12px;
}
.panels-2{
  display:grid; gap:16px;
  grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));
}
.panel .p-title{
  font-family:var(--font-head);
  font-size:15.5px; font-weight:600; color:var(--ink); margin:0 0 2px;
}
.panel .p-note{
  font-family:var(--font-body);
  font-size:12.5px; color:var(--ink-3); margin:0 0 10px;
}
.chart-box{ position:relative; width:100%; height:300px; }
.chart-box.tall{ height:360px; }

.legend{
  display:flex; flex-wrap:wrap; gap:14px;
  font-family:var(--font-body); font-size:13px; color:var(--ink-2);
  max-width:var(--measure); margin:0 auto 6px;
}
.legend span{ display:inline-flex; align-items:center; gap:7px; }
.swatch{ width:14px; height:14px; border-radius:3px; display:inline-block; }

/* ---------------------------------------------------------------------------
   6. Stat tiles
   ------------------------------------------------------------------------- */
.tiles{
  display:grid; gap:14px;
  grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));
  margin:30px 0;
}
.stat{
  background:var(--surface);
  border:1px solid var(--hairline);
  border-radius:var(--radius-md);
  padding:16px 16px 14px;
}
.stat .s-label{
  font-family:var(--font-body);
  font-size:12px; color:var(--ink-3); line-height:1.35;
  text-transform:uppercase; letter-spacing:.04em; margin-bottom:8px;
}
.stat .s-num{
  font-family:var(--font-head);
  font-size:30px; font-weight:700; color:var(--ink);
  font-variant-numeric:tabular-nums; line-height:1;
}
.stat .s-sub{
  font-family:var(--font-body);
  font-size:12.5px; color:var(--ink-2); margin-top:7px; line-height:1.4;
}
.stat.good .s-num{ color:var(--good); }
.stat.bad  .s-num{ color:var(--bad); }

/* ---------------------------------------------------------------------------
   7. Notes / methodology box
   ------------------------------------------------------------------------- */
.method{
  background:var(--surface-2);
  border:1px solid var(--hairline);
  border-radius:var(--radius-md);
  padding:18px 20px;
  margin:40px auto 0;
  max-width:var(--measure);
  font-family:var(--font-body);
}
.method h3{
  font-family:var(--font-head);
  font-size:13.5px; text-transform:uppercase; letter-spacing:.08em;
  color:var(--ink-2); margin:0 0 10px;
}
.method p{ font-size:13.5px; line-height:1.62; color:var(--ink-2); margin:0 0 10px; }
.method p:last-child{ margin-bottom:0; }

/* ---------------------------------------------------------------------------
   7b. Terms strip — the financial terms an article uses, as a compact
       caps, blue, dot-separated line. Reusable; added only when requested.
   ------------------------------------------------------------------------- */
.terms{
  max-width:var(--measure);
  margin:18px auto 8px;
  font-family:var(--font-body);
  font-size:12.5px; font-weight:600;
  text-transform:uppercase; letter-spacing:.09em;
  line-height:1.6;
}
.terms span{ color:var(--accent-2); white-space:nowrap; }
.terms .sep{ color:var(--ink-3); font-weight:400; margin:0 9px; }

/* Back-link (legacy single link kept for compatibility) */
.back-link{
  display:inline-block; margin-top:26px;
  font-family:var(--font-body); font-size:14.5px; font-weight:500;
}

/* ---------------------------------------------------------------------------
   8. Article footer — back to Articles + Related articles
   ------------------------------------------------------------------------- */
.article-foot{
  max-width:var(--measure);
  margin:52px auto 0;
  padding-top:22px;
  border-top:2px solid var(--ink);
}
.article-foot .foot-back{
  font-family:var(--font-body); font-size:14px; font-weight:600;
  color:var(--accent-2);
}

.related{
  max-width:var(--measure);
  margin:30px auto 0;
}
.related h2{
  font-family:var(--art-serif);
  font-size:23px; font-weight:700; color:var(--ink);
  margin:0 0 18px;
}
.related-grid{
  display:grid; gap:18px;
  grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
}
.related-card{
  display:block;
  border-top:1px solid var(--hairline);
  padding-top:14px;
}
.related-card:hover{ text-decoration:none; }
.related-card .rc-cat{
  font-family:var(--font-body);
  text-transform:uppercase; letter-spacing:.09em;
  font-size:11px; font-weight:700; color:var(--accent-2); margin-bottom:6px;
}
.related-card .rc-title{
  font-family:var(--art-serif);
  font-size:18px; font-weight:700; color:var(--ink);
  line-height:1.25; margin:0 0 6px;
}
.related-card:hover .rc-title{ color:var(--accent-2); }
.related-card .rc-sum{
  font-family:var(--font-body);
  font-size:13.5px; line-height:1.5; color:var(--ink-2); margin:0 0 8px;
}
.related-card .rc-read{
  font-family:var(--font-body);
  font-size:12px; color:var(--ink-3);
}

/* ===========================================================================
   9. ARTICLES INDEX PAGE (articles.html)
   =========================================================================== */
.pub-wrap{
  box-sizing:border-box;
  width:100%;
  max-width:980px;
  margin:0 auto;
  padding:28px 20px 80px;
}

/* Masthead banner for the publication */
.pub-masthead{
  text-align:center;
  border-bottom:2px solid var(--ink);
  padding-bottom:22px;
  margin-bottom:8px;
}
.pub-masthead .pub-eyebrow{
  font-family:var(--font-body);
  text-transform:uppercase; letter-spacing:.28em;
  font-size:12px; font-weight:600; color:var(--ink-3);
  margin-bottom:14px;
}
.pub-masthead h1{
  font-family:var(--art-serif);
  font-weight:700; color:var(--ink);
  font-size:clamp(34px, 6vw, 58px);
  letter-spacing:-.01em; line-height:1.04; margin:0 0 12px;
}
.pub-masthead .pub-tagline{
  font-family:var(--art-serif);
  font-style:italic; font-size:clamp(16px,2.2vw,19px);
  color:var(--ink-2); margin:0 auto; max-width:620px; line-height:1.5;
}

/* Section label + thin rule used to introduce a group of articles */
.pub-section-head{
  display:flex; align-items:center; gap:16px;
  margin:42px 0 22px;
}
.pub-section-head h2{
  font-family:var(--font-head);
  font-size:14px; text-transform:uppercase; letter-spacing:.12em;
  font-weight:600; color:var(--ink-2); margin:0; white-space:nowrap;
}
.pub-section-head::after{
  content:""; flex:1 1 auto; height:1px; background:var(--hairline);
}

/* Featured article — large, text-forward editorial treatment (no art) */
.pub-featured{
  display:block;
  border:1px solid var(--hairline);
  border-left:3px solid var(--accent);
  border-radius:var(--radius-md);
  background:var(--surface);
  padding:32px 34px;
  margin-top:26px;
}
.pub-featured:hover{ text-decoration:none; border-color:var(--hairline-strong); border-left-color:var(--accent); }
.pub-featured .pf-cat{
  font-family:var(--font-body);
  text-transform:uppercase; letter-spacing:.1em;
  font-size:11.5px; font-weight:700; color:var(--accent-2); margin-bottom:10px;
}
.pub-featured h3{
  font-family:var(--art-serif);
  font-size:clamp(24px, 3.4vw, 32px); font-weight:700; line-height:1.14;
  color:var(--ink); margin:0 0 14px;
}
.pub-featured h3{ max-width:780px; }
.pub-featured .pf-sum{
  font-family:var(--art-serif);
  font-size:17px; line-height:1.6; color:var(--ink-2); margin:0 0 16px;
  max-width:700px;
}
.pub-featured .pf-meta{
  font-family:var(--font-body); font-size:12.5px; color:var(--ink-3);
  display:flex; gap:10px; align-items:center; margin-bottom:16px;
}
.pub-featured .pf-meta .sep{ color:var(--hairline-strong); }
.pub-featured .pf-read{
  font-family:var(--font-body); font-size:14px; font-weight:600; color:var(--accent-2);
}

/* Article list — cards that scale to any number of articles */
.article-list{
  display:flex;                        /* single column list */
  flex-direction:column;
  gap:1px;
  background:var(--hairline);          /* hairline shows between rows */
  border:1px solid var(--hairline);
  border-radius:var(--radius-md);
  overflow:hidden;
}
.article-card{
  display:block;                       /* content-height rows, no reserved art space */
  background:var(--surface);
  padding:24px 26px 22px;
  transition:background .15s ease;
}
.article-card:hover{ background:var(--surface-2); text-decoration:none; }
.article-card .ac-cat{
  font-family:var(--font-body);
  text-transform:uppercase; letter-spacing:.1em;
  font-size:11px; font-weight:700; color:var(--accent-2); margin-bottom:10px;
}
.article-card h3{
  font-family:var(--art-serif);
  font-size:21px; font-weight:700; line-height:1.22;
  color:var(--ink); margin:0 0 10px;
}
.article-card:hover h3{ color:var(--accent-2); }
.article-card .ac-sum{
  font-family:var(--font-body);
  font-size:14px; line-height:1.55; color:var(--ink-2);
  margin:0 0 16px; max-width:760px;
}
.article-card .ac-foot{
  display:flex; align-items:center; justify-content:space-between;
  font-family:var(--font-body); font-size:12.5px; color:var(--ink-3);
  padding-top:12px; border-top:1px solid var(--hairline);
}
.article-card .ac-read{ color:var(--accent-2); font-weight:600; }

/* ---------------------------------------------------------------------------
   10. Responsive
   ------------------------------------------------------------------------- */
@media (max-width:720px){
  .pub-featured{ padding:24px 22px; }
}
@media (max-width:560px){
  .article-body{ font-size:18px; line-height:1.7; }
  .chart-box{ height:260px; }
  .article-body .lead::first-letter{ font-size:58px; line-height:44px; }
}