/* ==========================================================================
   Independent Insights — Design System
   Palette:
     --ink        #16232E  primary text / dark surfaces
     --ink-soft   #46565F  secondary text
     --paper      #F2F4F1  page background (cool paper, not warm cream)
     --surface    #FFFFFF  card / raised surfaces
     --teal       #2F6F6B  primary accent (links, active states)
     --teal-dark  #1F4D4A  hover / pressed
     --amber      #C98A2C  signal accent (badges, highlights, stats)
     --line       #D9DED9  hairlines / dividers
   Type:
     Display  — 'Fraunces'      (headlines; a document-grade serif, used sparingly)
     Body     — 'Inter'         (nav, paragraphs, UI)
     Data     — 'IBM Plex Mono' (stats, dates, percentages, margins of error)
   Signature element: the "margin-of-error bracket" — ⊢ … ⊣ tick marks,
   used as a divider and a frame around key figures, echoing the caliper
   brackets on a polling report's confidence interval.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,500&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --ink: #16232E;
  --ink-soft: #46565F;
  --paper: #F2F4F1;
  --surface: #FFFFFF;
  --teal: #2F6F6B;
  --teal-dark: #1F4D4A;
  --amber: #C98A2C;
  --amber-soft: #F3E4C8;
  --line: #D9DED9;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-data: 'IBM Plex Mono', 'SFMono-Regular', Menlo, monospace;

  --max-width: 1120px;
  --radius: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); font-weight: 500; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; color: var(--ink-soft); }

.eyebrow {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-dark);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--amber);
  display: inline-block;
}

/* ---- Signature: margin-of-error bracket divider ---- */
.moe-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink-soft);
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  margin: 2.5rem 0;
  user-select: none;
}
.moe-divider::before,
.moe-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
  position: relative;
}
.moe-divider::before { border-left: 1px solid var(--line); }
.moe-divider::after { border-right: 1px solid var(--line); }

.moe-frame {
  display: inline-flex;
  align-items: stretch;
  font-family: var(--font-data);
}
.moe-frame .tick {
  width: 8px;
  border-top: 2px solid var(--amber);
  border-bottom: 2px solid var(--amber);
}
.moe-frame .tick.left { border-left: 2px solid var(--amber); }
.moe-frame .tick.right { border-right: 2px solid var(--amber); }
.moe-frame .content {
  border-top: 2px solid var(--amber);
  border-bottom: 2px solid var(--amber);
  padding: 0 6px;
}

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(242, 244, 241, 0.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}
.brand:hover { color: var(--ink); text-decoration: none; }
.brand-mark { width: 30px; height: 30px; flex-shrink: 0; }

.nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.94rem;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--ink); text-decoration: none; border-bottom-color: var(--line); }
.nav-links a.active { color: var(--ink); border-bottom-color: var(--amber); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 10px;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  position: relative;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 4px; }

@media (max-width: 780px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    display: none;
    padding: 8px 0;
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 12px 28px; border-bottom: 1px solid var(--line); }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding: 84px 0 70px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.tally-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero h1 { max-width: 16ch; }
.hero-sub { font-size: 1.08rem; max-width: 46ch; }

.hero-actions { display: flex; gap: 14px; margin-top: 26px; flex-wrap: wrap; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--teal-dark); color: #fff; transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); transform: translateY(-1px); }

/* ---- Latest poll card (home) ---- */
.poll-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: 0 18px 40px -28px rgba(22, 35, 46, 0.35);
}
.poll-card .kicker {
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 8px;
  display: block;
}
.poll-card h3 { margin-bottom: 4px; }
.poll-card .date { font-family: var(--font-data); font-size: 0.8rem; color: var(--ink-soft); margin-bottom: 18px; display: block; }

.stat-row { display: flex; gap: 26px; margin: 16px 0 18px; flex-wrap: wrap; }
.stat {
  font-family: var(--font-data);
}
.stat .num { font-size: 2rem; color: var(--ink); font-weight: 600; line-height: 1; }
.stat .lbl { font-size: 0.72rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.06em; }

/* ==========================================================================
   Pillars strip
   ========================================================================== */
.pillars {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
@media (max-width: 780px) { .pillars-grid { grid-template-columns: 1fr; gap: 32px; } }
.pillar .tag {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--teal-dark);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 10px;
}
.pillar h3 { margin-bottom: 8px; }
.pillar p { margin: 0; }

/* ==========================================================================
   Section headers
   ========================================================================== */
.section { padding: 70px 0; }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.section-head h2 { margin: 0; }

/* ==========================================================================
   Post cards (Research / Analysis listings)
   ========================================================================== */
.post-list { display: flex; flex-direction: column; gap: 0; }

.post-card {
  border-top: 1px solid var(--line);
  padding: 30px 0;
}
.post-card:last-child { border-bottom: 1px solid var(--line); }

.post-head {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  gap: 24px;
  align-items: start;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  padding: 0;
  font: inherit;
  color: inherit;
}
.post-head:hover .post-title { color: var(--teal-dark); }
@media (max-width: 700px) {
  .post-head { grid-template-columns: 1fr auto; }
  .post-meta-col { display: none; }
}

.post-meta-col {
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--ink-soft);
  padding-top: 4px;
}
.post-meta-col .loc { display: block; color: var(--ink); font-weight: 600; margin-bottom: 4px; }

.post-title { font-size: 1.3rem; margin-bottom: 8px; transition: color 0.15s ease; }
.post-dek { margin: 0; }
.post-badge {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-dark);
  background: #E4EFEE;
  border-radius: 2px;
  padding: 3px 8px;
  margin-bottom: 10px;
}

.post-toggle {
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  font-family: var(--font-data);
  flex-shrink: 0;
  margin-top: 4px;
  transition: transform 0.2s ease, background 0.2s ease;
}
.post-card[data-open="true"] .post-toggle { transform: rotate(45deg); background: var(--ink); color: var(--paper); }

.post-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease;
}
.post-card[data-open="true"] .post-body { grid-template-rows: 1fr; }
.post-body-inner { overflow: hidden; }

.post-detail {
  padding: 26px 0 6px 0;
  margin-left: 0;
  border-top: 1px dashed var(--line);
  margin-top: 22px;
}
@media (min-width: 701px) {
  .post-detail { margin-left: 174px; }
}

.stat-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin: 18px 0 22px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat-strip .stat .num { font-size: 1.4rem; }

.qa-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 16px 0;
}
.qa-block .q { font-weight: 600; color: var(--ink); margin-bottom: 10px; }
.qa-block ul { margin: 0; padding-left: 20px; color: var(--ink-soft); }
.qa-block li { margin-bottom: 4px; }

.file-links { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0; }
.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 0.82rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
  padding: 8px 14px;
  color: var(--ink);
}
.file-chip:hover { background: var(--ink); color: var(--paper); text-decoration: none; }

.post-figure { margin: 20px 0; }
.post-figure img { border: 1px solid var(--line); border-radius: var(--radius); }
.post-figure figcaption { font-size: 0.85rem; color: var(--ink-soft); margin-top: 8px; font-family: var(--font-data); }

.empty-state {
  padding: 60px 24px;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--ink-soft);
}

/* ==========================================================================
   About page
   ========================================================================== */
.prose { max-width: 68ch; }
.prose p { font-size: 1.05rem; }

.numbers-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 40px 0;
}
@media (max-width: 780px) { .numbers-strip { grid-template-columns: repeat(2, 1fr); } }
.numbers-strip .stat .num { font-size: 1.7rem; }

.method-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: method;
}
.method-list li {
  counter-increment: method;
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.method-list li::before {
  content: counter(method, decimal-leading-zero);
  font-family: var(--font-data);
  color: var(--amber);
  font-size: 0.95rem;
  padding-top: 2px;
}
.method-list li:last-child { border-bottom: 1px solid var(--line); }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
@media (max-width: 780px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
}
.contact-row { display: flex; justify-content: space-between; padding: 14px 0; border-top: 1px solid var(--line); }
.contact-row:first-child { border-top: none; }
.contact-row .lbl { font-family: var(--font-data); font-size: 0.78rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.06em; }
.contact-row a { color: var(--ink); font-weight: 600; }

.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--font-data); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: 2px solid var(--amber); outline-offset: 1px; border-color: var(--amber); }

.social-row { display: flex; gap: 14px; margin-top: 22px; }
.social-row a {
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink);
}
.social-row a:hover { border-color: var(--ink); background: var(--ink); color: var(--paper); text-decoration: none; }
.social-row svg { width: 18px; height: 18px; }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band {
  background: var(--ink);
  color: var(--paper);
  padding: 60px 0;
}
.cta-band h2 { color: var(--paper); }
.cta-band p { color: #C3CBCF; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-band .btn-primary { background: var(--amber); color: var(--ink); }
.cta-band .btn-primary:hover { background: #E0A648; color: var(--ink); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 44px 0 30px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}
.footer-brand { font-family: var(--font-display); font-size: 1.1rem; color: var(--ink); }
.footer-tagline { max-width: 34ch; margin-top: 8px; font-size: 0.9rem; }
.footer-links { display: flex; gap: 34px; flex-wrap: wrap; }
.footer-links h4 { font-family: var(--font-data); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); margin-bottom: 12px; }
.footer-links ul { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: var(--ink-soft); font-size: 0.9rem; }
.footer-links a:hover { color: var(--ink); }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-family: var(--font-data);
}

/* ==========================================================================
   Page header (interior pages)
   ========================================================================== */
.page-header {
  padding: 62px 0 46px;
  border-bottom: 1px solid var(--line);
}
.page-header p { max-width: 60ch; font-size: 1.05rem; }

/* Reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }