/* MCA-SMACNA Static Snapshot — Editorial dashboard styling */

:root {
  --ink: #0f1620;
  --text: #1f2933;
  --text-mid: #4a5361;
  --text-dim: #6b7480;
  --paper: #f8f6f1;
  --panel: #ffffff;
  --border: #e4e0d8;
  --border-strong: #c9c2b3;
  --accent: #b1741f;
  --accent-soft: #fbf3e4;

  --inputs: #a8482b;
  --housing: #4a6a3f;
  --labor: #4a5f7a;
  --macro: #6a4a7a;
  --impact: #7a4a4a;

  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius: 6px;
  --shadow-sm: 0 1px 3px rgba(15,22,32,0.06);
  --shadow-md: 0 4px 20px rgba(15,22,32,0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }

/* ---------- Topbar ---------- */
.topbar {
  background: var(--ink);
  color: #f6f4ef;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: #f6f4ef;
}
.brand-sub {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(246,244,239,0.55);
  margin-top: 2px;
}
.topnav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.topnav a {
  color: rgba(246,244,239,0.7);
  text-decoration: none;
  padding: 6px 12px;
  font-size: 13px;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}
.topnav a:hover {
  background: rgba(255,255,255,0.06);
  color: #f6f4ef;
}

/* ---------- Hero ---------- */
.hero {
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  padding: 64px 24px 56px;
}
.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}
.tagline {
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 20px 0;
}
h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 52px;
  line-height: 1.08;
  color: var(--ink);
  margin: 0 0 24px 0;
  letter-spacing: -0.01em;
}
.lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--text-mid);
  margin: 0 0 20px 0;
  max-width: 780px;
}
.hero-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  margin: 0;
}

/* ---------- Section ---------- */
.section {
  padding: 72px 24px 24px;
  border-bottom: 1px solid var(--border);
}
.section:last-of-type { border-bottom: none; }

.section-head {
  max-width: 1200px;
  margin: 0 auto 32px;
}
.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 3px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}
.tag-inputs   { background: #f6e6df; color: var(--inputs); }
.tag-housing  { background: #e6efe0; color: var(--housing); }
.tag-labor    { background: #dfe4ed; color: var(--labor); }
.tag-macro    { background: #e8dfec; color: var(--macro); }
.tag-impact   { background: #eddede; color: var(--impact); }

.section h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 36px;
  line-height: 1.15;
  color: var(--ink);
  margin: 0 0 12px 0;
  letter-spacing: -0.005em;
}
.section-sub {
  font-size: 17px;
  color: var(--text-mid);
  margin: 0;
  max-width: 780px;
  line-height: 1.55;
}

/* ---------- Figure ---------- */
.figure {
  max-width: 1200px;
  margin: 0 auto 24px;
}
.figure img {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}
.figure figcaption {
  margin-top: 20px;
  padding: 20px 24px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.6;
}
.figure figcaption strong {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- Variants (Austin/SA toggle equivalent) ---------- */
.variants {
  max-width: 1200px;
  margin: 32px auto 0;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.variants summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  padding: 8px 0;
  list-style: none;
  user-select: none;
}
.variants summary::-webkit-details-marker { display: none; }
.variants summary::before {
  content: "▸ ";
  display: inline-block;
  margin-right: 6px;
  transition: transform 0.15s;
}
.variants[open] summary::before {
  transform: rotate(90deg);
}
.variants summary:hover { text-decoration: underline; }

.variant-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 20px;
}
.variant-grid figure { margin: 0; }
.variant-grid img {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.variant-grid figcaption {
  margin-top: 10px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  text-transform: uppercase;
  text-align: center;
}

/* ---------- Methodology ---------- */
.methodology {
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 24px 96px;
}
.methodology h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 32px;
  color: var(--ink);
  margin: 0 0 32px 0;
}
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.method-grid h3 {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 12px 0;
}
.method-grid ul {
  margin: 0;
  padding-left: 20px;
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.6;
}
.method-grid li { margin-bottom: 8px; }
.method-grid strong { color: var(--ink); font-weight: 600; }

/* ---------- Footer ---------- */
.footer {
  background: var(--ink);
  color: rgba(246,244,239,0.7);
  padding: 40px 24px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.footer p {
  margin: 0 0 8px 0;
  font-size: 14px;
}
.footer-sources {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(246,244,239,0.5);
}
.footer-credit {
  margin-top: 16px;
  font-size: 13px;
  color: rgba(246,244,239,0.4);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  h1 { font-size: 36px; }
  .section h2 { font-size: 28px; }
  .lede { font-size: 17px; }
  .method-grid { grid-template-columns: 1fr; gap: 32px; }
  .variant-grid { grid-template-columns: 1fr; }
  .hero { padding: 40px 20px 32px; }
  .section { padding: 48px 20px 16px; }
  .topbar-inner { padding: 12px 16px; }
  .topnav { font-size: 12px; }
  .topnav a { padding: 4px 8px; font-size: 12px; }
}

@media (max-width: 500px) {
  h1 { font-size: 28px; }
  .lede { font-size: 16px; }
  .figure figcaption { padding: 16px; font-size: 14px; }
}

/* Print — flatten variants for board handouts */
@media print {
  .topbar, .footer, .variants { display: none; }
  .section { page-break-inside: avoid; padding: 24px 0; border: none; }
  .figure img { box-shadow: none; }
  body { background: white; }
}