/**
 * Spark + Stone — Article Design System
 * Based on: bramblett-capital-gain-ordinary-income.html
 * Usage: <link rel="stylesheet" href="../assets/article.css">
 *        Drop at end of <head>, before any page-specific overrides.
 *        Always pair with nav.js + footer.js at bottom of <body>.
 *
 * Fonts required (add to <head>):
 *   <link href="https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=DM+Sans:wght@300;400;500;600;700&display=swap" rel="stylesheet">
 */

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Design Tokens ──────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --a-bg:           #f7f5f0;
  --a-bg-secondary: #efece4;
  --a-bg-card:      #ffffff;
  --a-bg-highlight: #f0ebe0;
  --a-bg-input:     #e8e4d8;

  /* Text */
  --a-text:         #2a2e25;
  --a-text-2:       #5a5f52;
  --a-text-muted:   #8a8e80;

  /* Accents */
  --a-sage:         #7A8C6E;
  --a-sage-dark:    #556350;
  --a-sage-light:   #9aac8e;
  --a-coral:        #C97B5A;
  --a-coral-light:  #d99a7e;
  --a-gold:         #e8d5a0;
  --a-gold-dim:     #c4b484;
  --a-cap-green:    #7a9c6e;
  --a-ord-red:      #c97b5a;
  --a-neutral-blue: #6e8a9c;

  /* Borders */
  --a-border:       #d9d4c7;

  /* Header background (per-article override via inline style or subclass) */
  --a-header-bg:    #788A6C;
}

/* ── Base ───────────────────────────────────────────────────── */
body {
  background: var(--a-bg);
  color: var(--a-text);
  font-family: 'DM Sans', 'Poppins', sans-serif;
  font-weight: 400;
  line-height: 1.75;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--a-sage-dark); text-decoration: none; }
a:hover { color: var(--a-coral); text-decoration: underline; }

/* ── Article Header ─────────────────────────────────────────── */
.article-header {
  position: relative;
  padding: 80px 24px 60px;
  background: var(--a-header-bg, #788A6C);
  border-bottom: 1px solid var(--a-border);
  overflow: hidden;
}

.article-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 500px 300px at 15% 85%, rgba(255,255,255,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 400px 350px at 85% 15%, rgba(255,255,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.header-inner {
  max-width: 780px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.brand-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--a-gold);
  margin-bottom: 28px;
}
.brand-tag span { color: var(--a-coral-light); }

.article-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4.5vw, 42px);
  font-weight: 700;
  line-height: 1.22;
  color: #fdfcf8;
  margin-bottom: 24px;
  letter-spacing: -0.4px;
}

.subtitle {
  font-size: 17px;
  color: rgba(253,252,248,0.8);
  line-height: 1.7;
  max-width: 640px;
  font-weight: 300;
}

.meta-line {
  margin-top: 32px;
  font-size: 13px;
  color: rgba(253,252,248,0.6);
  font-weight: 500;
}
.meta-line .dot {
  display: inline-block;
  width: 4px; height: 4px;
  background: var(--a-sage);
  border-radius: 50%;
  margin: 0 12px;
  vertical-align: middle;
}

/* ── Article Body ───────────────────────────────────────────── */
.article-body {
  max-width: 780px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.article-body h2 {
  font-family: 'Playfair Display', serif;
  font-size: 26px;
  font-weight: 600;
  color: var(--a-text);
  margin: 56px 0 20px;
  letter-spacing: -0.3px;
}
.article-body h2:first-of-type { margin-top: 0; }

.article-body h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--a-gold-dim);
  margin: 32px 0 12px;
}

.article-body p {
  margin-bottom: 20px;
  color: var(--a-text-2);
}
.article-body strong { color: var(--a-text); font-weight: 600; }

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--a-coral);
  margin-bottom: 12px;
  margin-top: 60px;
}

/* ── Pull Quote ─────────────────────────────────────────────── */
.pullquote {
  border-left: 3px solid var(--a-coral);
  padding: 24px 28px;
  margin: 36px 0;
  background: var(--a-bg-card);
  border-radius: 0 8px 8px 0;
}
.pullquote p {
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  line-height: 1.55;
  color: var(--a-text);
  margin: 0;
}

/* ── Highlight / Callout Box ────────────────────────────────── */
.highlight-box {
  background: var(--a-bg-card);
  border: 1px solid var(--a-border);
  border-radius: 10px;
  padding: 28px;
  margin: 36px 0;
}
.highlight-box .box-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--a-sage);
  margin-bottom: 16px;
}

/* ── Two-Column Compare ─────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 36px 0;
}
@media (max-width: 600px) { .two-col { grid-template-columns: 1fr; } }

.col-card {
  background: var(--a-bg-card);
  border: 1px solid var(--a-border);
  border-radius: 10px;
  padding: 24px;
  border-top: 3px solid var(--a-cap-green);
}
.col-card.ord { border-top-color: var(--a-ord-red); }
.col-card .col-title {
  font-family: 'Playfair Display', serif;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 14px;
}
.col-card .col-title.cap { color: var(--a-cap-green); }
.col-card .col-title.ord { color: var(--a-ord-red); }
.col-card ul { list-style: none; padding: 0; }
.col-card li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
  color: var(--a-text-2);
  font-size: 15px;
  line-height: 1.55;
}
.col-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--a-text-muted);
}

/* ── Comparison Table ───────────────────────────────────────── */
.comp-table-wrap {
  margin: 40px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.comp-table {
  width: 100%;
  min-width: 580px;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
}
.comp-table thead th {
  background: var(--a-bg-highlight);
  color: var(--a-gold-dim);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 14px 16px;
  text-align: left;
  border-bottom: 2px solid var(--a-sage-dark);
}
.comp-table thead th:first-child { border-radius: 8px 0 0 0; }
.comp-table thead th:last-child  { border-radius: 0 8px 0 0; }
.comp-table tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--a-border);
  color: var(--a-text-2);
  vertical-align: top;
  line-height: 1.55;
}
.comp-table tbody tr:last-child td { border-bottom: none; }
.comp-table tbody td:first-child {
  font-weight: 600;
  color: var(--a-text);
  white-space: nowrap;
  font-size: 13px;
}
.comp-table .cell-cap   { color: var(--a-cap-green);    font-weight: 600; }
.comp-table .cell-ord   { color: var(--a-ord-red);      font-weight: 600; }
.comp-table .cell-mixed { color: var(--a-neutral-blue); font-weight: 600; }

/* ── Takeaways ──────────────────────────────────────────────── */
.takeaways {
  background: var(--a-bg-secondary);
  border: 1px solid #c8d2b8;
  border-radius: 12px;
  padding: 36px 32px 28px;
  margin: 52px 0 24px;
}
.takeaways .box-label {
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--a-gold-dim);
  margin-bottom: 24px;
}
.takeaway-item {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  align-items: flex-start;
}
.takeaway-num {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 6px;
  background: #f5e9c8;
  color: #2a2e25;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.takeaway-text { color: var(--a-text-2); line-height: 1.6; font-size: 16px; }
.takeaway-text strong { color: var(--a-text); }

/* ── CTA Block ──────────────────────────────────────────────── */
.cta-block {
  text-align: center;
  margin-top: 56px;
  padding: 36px 28px;
  background: var(--a-bg-secondary);
  border: 1px solid var(--a-border);
  border-radius: 10px;
}
.cta-block p { font-size: 15px; color: var(--a-text-muted); margin-bottom: 8px; }
.cta-block .cta-name {
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  color: var(--a-gold-dim);
  font-weight: 600;
  margin-bottom: 6px;
}
.cta-block .cta-sub { font-size: 14px; color: var(--a-text-muted); }
.cta-block .cta-link {
  display: inline-block;
  margin-top: 20px;
  padding: 11px 28px;
  background: #4a5940;
  color: #fdfcf8;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s;
}
.cta-block .cta-link:hover { background: #a07830; text-decoration: none; }

/* ── Article Footer / Disclaimer ───────────────────────────── */
.article-footer {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px 60px;
}
.disclaimer {
  border-top: 1px solid var(--a-border);
  padding-top: 24px;
  font-size: 13px;
  color: var(--a-text-muted);
  line-height: 1.7;
}

/* ── Key Stat / Data Card ───────────────────────────────────── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin: 36px 0;
}
.stat-card {
  background: var(--a-bg-card);
  border: 1px solid var(--a-border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
}
.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 600;
  color: var(--a-sage-dark);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--a-text-muted);
  margin-bottom: 6px;
}
.stat-desc {
  font-size: 13px;
  color: var(--a-text-2);
  line-height: 1.55;
}

/* ── Warning / Alert Box ────────────────────────────────────── */
.alert-box {
  background: rgba(201,123,90,0.07);
  border: 1px solid rgba(201,123,90,0.3);
  border-left: 3px solid var(--a-coral);
  border-radius: 0 8px 8px 0;
  padding: 20px 24px;
  margin: 32px 0;
}
.alert-box .alert-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--a-coral);
  margin-bottom: 8px;
}
.alert-box p { font-size: 14px; color: var(--a-text-2); margin: 0; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 600px) {
  .article-header  { padding: 56px 20px 44px; }
  .article-body    { padding: 40px 20px 60px; }
  .highlight-box,
  .takeaways       { padding: 24px 20px; }
  .pullquote       { padding: 20px 22px; }
  .stat-row        { grid-template-columns: 1fr 1fr; }
}

/* ── Dark Mode Overrides (article system) ───────────────────── */
body.dark-mode {
  --a-bg:           #191e16;
  --a-bg-secondary: #232a1e;
  --a-bg-card:      #2a3224;
  --a-bg-highlight: #333d2c;
  --a-text:         #edf0ea;
  --a-text-2:       #c4d4bc;
  --a-text-muted:   #8a9577;
  --a-border:       #4a5940;
  --a-gold-dim:     #e8d5a0;
}
body.dark-mode .pullquote    { background: var(--a-bg-card); }
body.dark-mode .highlight-box { background: var(--a-bg-card); }
body.dark-mode .comp-table thead th { background: var(--a-bg-highlight); }
body.dark-mode .comp-table tbody td { border-bottom-color: var(--a-border); }
body.dark-mode .col-card     { background: var(--a-bg-card); border-color: var(--a-border); }
body.dark-mode .flow-node    { background: var(--a-bg-card); border-color: var(--a-border); }
body.dark-mode .takeaways    { background: var(--a-bg-secondary); border-color: var(--a-border); }
body.dark-mode .cta-block    { background: var(--a-bg-secondary); border-color: var(--a-border); }
body.dark-mode .stat-card    { background: var(--a-bg-card); border-color: var(--a-border); }
body.dark-mode a:not([style]) { color: var(--a-gold-dim); }
