/* Research Decoded, shared styles
   Independent research-literacy publication. Monochrome ink identity.
   Montserrat, mostly white, ink (#171717) for emphasis and the capture
   block. No em or en dashes. */

:root {
  --ink: #171717;
  --text: #171717CC;       /* body copy, ink at ~80% */
  --muted: #595959;        /* quiet labels and notes */
  --rule: #17171722;       /* hairlines */
  --paper: #FFFFFF;
  --canvas: #FAFAFA;       /* panels and light surfaces */
  --accent: #595959;       /* eyebrows / kickers: quiet grey, never colour */
  --accent-deep: #171717;  /* fills, CTA, deep emphasis: ink */
  --peach: #EDEDED;        /* highlight fill (renamed token, kept for reuse) */
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  font-family: 'Montserrat', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 44px 24px;
}

/* Site header (sticky nav bar) */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255,255,255,0.85);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.site-header-in {
  max-width: 1060px; margin: 0 auto;
  padding: 13px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.brand-lock { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand-mark { display: block; flex-shrink: 0; }
.brand-name { font-weight: 600; font-size: 16px; letter-spacing: 0.005em; color: var(--ink); white-space: nowrap; }
.brand-thin { color: var(--muted); font-weight: 500; }
.site-nav { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; justify-content: flex-end; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500; white-space: nowrap; padding: 2px 0; }
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--ink); }

/* Eyebrow */
.eyebrow {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}

h1 {
  font-weight: 600;
  font-size: 34px;
  line-height: 1.18;
  color: var(--ink);
  margin: 0 0 18px;
}

h2 {
  font-weight: 600;
  font-size: 22px;
  line-height: 1.3;
  color: var(--ink);
  margin: 36px 0 12px;
}

h3 {
  font-weight: 600;
  font-size: 17px;
  line-height: 1.35;
  color: var(--ink);
  margin: 24px 0 8px;
}

.lede {
  font-size: 18px;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 28px;
}

p { margin: 0 0 16px; }

a { color: var(--ink); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

/* Proof / detail panel */
.panel {
  background: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 0;
  margin: 0 0 36px;
  overflow: hidden;
}
.panel-head {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  padding: 16px 22px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px;
}
.panel-head .title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
}
.panel-head .note { font-size: 12px; color: var(--muted); }
.panel-body { padding: 22px; }
.panel-body .intro { font-size: 13px; color: var(--muted); margin: 0 0 18px; }

/* Definition table */
table.rows {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table.rows td { padding: 12px 0; vertical-align: top; }
table.rows tr { border-bottom: 1px solid var(--rule); }
table.rows tr:last-child { border-bottom: none; }
table.rows td.k { width: 38%; font-weight: 600; color: var(--ink); padding-right: 16px; }
table.rows td.v { color: var(--text); }

/* Numbered steps */
ol.steps { list-style: none; counter-reset: step; margin: 0 0 36px; padding: 0; }
ol.steps > li { counter-increment: step; position: relative; padding: 0 0 22px 52px; margin: 0; }
ol.steps > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--canvas); border: 1px solid var(--rule);
  color: var(--accent-deep);
  font-size: 13px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
}
ol.steps > li:last-child { padding-bottom: 0; }
ol.steps h3 { font-size: 16px; font-weight: 600; color: var(--ink); margin: 4px 0 6px; }
ol.steps p { margin: 0; font-size: 15px; }

/* Lead capture, the ink fill */
.capture {
  background: var(--accent-deep);
  border-radius: 10px;
  padding: 30px 26px;
  margin: 44px 0 8px;
}
.capture .kicker {
  font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--peach); margin: 0 0 10px;
}
.capture h2 { font-size: 23px; line-height: 1.25; color: #FFFFFF; margin: 0 0 10px; }
.capture p { font-size: 15px; color: #FAFAFA; margin: 0 0 22px; }
.capture label.field { display: block; font-size: 13px; font-weight: 500; color: #FAFAFA; margin: 0 0 8px; }
.capture input[type="email"] {
  width: 100%; padding: 13px 14px; font-size: 15px; font-family: inherit;
  border: 1px solid rgba(255,255,255,0.3); border-radius: 6px;
  background: #FFFFFF; color: var(--ink); margin: 0 0 16px;
}
.capture label.consent {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13px; color: #FAFAFA; margin: 0 0 20px; cursor: pointer; line-height: 1.5;
}
.capture label.consent input { margin-top: 3px; flex-shrink: 0; }
.capture button {
  width: 100%; padding: 14px 20px; font-size: 15px; font-weight: 600; font-family: inherit;
  color: var(--accent-deep); background: #FFFFFF; border: none; border-radius: 6px;
  cursor: pointer; letter-spacing: .02em;
}

/* Cross-links */
.crosslink { font-size: 13px; color: var(--muted); margin: 18px 0 0; }
.crosslink a { font-weight: 500; color: var(--ink); }

/* Site footer (structured dark band) */
.site-footer { background: var(--ink); color: #fff; margin-top: 64px; }
.site-footer-in {
  max-width: 1060px; margin: 0 auto; padding: 52px 24px 40px;
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px;
}
.site-footer .brand-name { color: #fff; }
.site-footer .brand-thin { color: rgba(255,255,255,0.55); }
.foot-blurb { color: rgba(255,255,255,0.6); font-size: 13px; line-height: 1.6; max-width: 46ch; margin: 16px 0 14px; }
.foot-contact { color: rgba(255,255,255,0.6); font-size: 13px; margin: 0; }
.foot-contact a { color: #fff; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,0.4); }
.foot-contact a:hover { border-color: #fff; }
.foot-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.foot-col h4 { color: rgba(255,255,255,0.45); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 600; margin: 2px 0 14px; }
.foot-col a { display: block; color: rgba(255,255,255,0.8); text-decoration: none; font-size: 13.5px; margin: 0 0 11px; }
.foot-col a:hover { color: #fff; }
.site-footer-bar { border-top: 1px solid rgba(255,255,255,0.12); }
.site-footer-bar-in { max-width: 1060px; margin: 0 auto; padding: 20px 24px 30px; }
.foot-ruo { color: rgba(255,255,255,0.45); font-size: 11.5px; line-height: 1.55; margin: 0 0 12px; }
.foot-legal { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; color: rgba(255,255,255,0.45); font-size: 11.5px; line-height: 1.5; }
.foot-legal span { max-width: 48ch; }
@media (max-width: 760px) {
  .site-footer-in { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 600px) {
  .site-header-in { padding: 11px 18px; gap: 8px 14px; flex-wrap: wrap; justify-content: flex-start; }
  .site-nav { width: 100%; justify-content: flex-start; flex-wrap: wrap; gap: 8px 16px; }
  .site-nav a { font-size: 13px; }
  .site-footer-in { padding: 40px 18px 32px; }
  .site-footer-bar-in { padding: 18px 18px 26px; }
  .foot-legal { gap: 10px; }
}

/* ============ HERO ============ */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: start;
  margin: 0 0 8px;
}
.hero-main { min-width: 0; }
.hero-main h1 { margin-bottom: 14px; }
.hero-main .lede { margin-bottom: 24px; }

.gets { list-style: none; margin: 0 0 22px; padding: 0; }
.gets li { position: relative; padding: 0 0 9px 26px; font-size: 14px; color: #FAFAFA; line-height: 1.45; }
.gets li:last-child { padding-bottom: 0; }
.gets li::before {
  content: ""; position: absolute; left: 2px; top: 7px;
  width: 9px; height: 9px; border-radius: 50%; background: var(--peach);
}

.capture .microcopy { font-size: 12px; color: rgba(255,255,255,0.72); margin: 12px 0 0; line-height: 1.5; }

.capture .field-msg { font-size: 12.5px; color: #FFD9D2; margin: -8px 0 12px; font-weight: 500; }
.capture button:disabled { opacity: 0.75; cursor: default; }
.capture button { transition: transform .12s ease, opacity .12s ease; }
.capture button:hover:not(:disabled) { transform: translateY(-1px); }
.signup-done .done-h { font-size: 18px; font-weight: 600; color: #FFFFFF; margin: 0 0 6px; }
.signup-done .done-p { font-size: 14px; color: #FAFAFA; margin: 0; }

/* COA proof card */
.hero-aside { min-width: 0; }
.coa-proof { margin: 0; }
.coa-card {
  background: var(--paper); border: 1px solid var(--rule); border-radius: 10px;
  padding: 18px 20px 16px; box-shadow: 0 18px 40px -28px rgba(23,23,23,0.45);
}
.coa-top { display: flex; justify-content: space-between; align-items: center; margin: 0 0 2px; }
.coa-title { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); }
.coa-stamp {
  font-size: 10px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--rule); border-radius: 4px; padding: 2px 7px;
}
.coa-sub { font-size: 11.5px; color: var(--muted); margin: 0 0 14px; }
.coa-fields { list-style: none; margin: 0 0 14px; padding: 0; }
.coa-fields li {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 9px 8px; border-bottom: 1px solid var(--rule); font-size: 13px;
}
.coa-fields li:last-child { border-bottom: none; }
.coa-fields .cf { color: var(--text); }
.coa-fields .cv { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
.coa-fields .cv.ok { color: var(--muted); font-weight: 500; }
.coa-fields li.flag {
  background: var(--peach);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--ink);
  border-radius: 7px; margin: 2px -2px; padding: 10px 9px;
}
.coa-fields li.flag .cf { color: var(--ink); font-weight: 600; }
.coa-fields li.flag .cv { color: var(--ink); }
.coa-chart { position: relative; margin: 4px 2px 0; }
.coa-chart svg { display: block; }
.coa-chart-label { font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); display: block; margin-top: 2px; }
.coa-callout { display: flex; gap: 10px; align-items: flex-start; margin: 14px 4px 0; }
.coa-callout .coa-dot {
  flex-shrink: 0; margin-top: 5px; width: 8px; height: 8px; border-radius: 50%;
  background: var(--ink); box-shadow: 0 0 0 4px rgba(23,23,23,0.10);
}
.coa-callout p { font-size: 13px; color: var(--text); margin: 0; line-height: 1.45; }

/* Lighter mid-page capture */
.capture.light { background: var(--canvas); border: 1px solid var(--rule); }
.capture.light .kicker { color: var(--muted); }
.capture.light h2 { color: var(--ink); }
.capture.light p { color: var(--text); }
.capture.light .field { color: var(--muted); }
.capture.light input[type="email"] { border: 1px solid #DADADA; }
.capture.light button { color: #FFFFFF; background: var(--accent-deep); }
.capture.light .microcopy { color: var(--muted); }
.capture.light .signup-done .done-h { color: var(--ink); }
.capture.light .signup-done .done-p { color: var(--text); }

/* Prose blocks for the info pages */
.prose ul { margin: 0 0 18px; padding: 0 0 0 20px; }
.prose li { margin: 0 0 8px; font-size: 15px; }
.meta-line { font-size: 13px; color: var(--muted); margin: 0 0 28px; }

/* Accessibility */
input:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.capture input:focus-visible { outline-color: #FFFFFF; }

/* Load reveal */
.reveal { opacity: 1; }
.reveal-on { opacity: 0; transform: translateY(10px); animation: rise .5s ease forwards; }
@keyframes rise { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .reveal-on { opacity: 1; transform: none; animation: none; } }

/* ============ Mobile ============ */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 28px; }
  .hero-aside { order: 2; }
}
@media (max-width: 600px) {
  .wrap { padding: 32px 18px; }
  h1 { font-size: 27px; }
  h2 { font-size: 20px; }
  .lede { font-size: 16px; }
  table.rows td.k { width: 42%; }
  .capture { padding: 26px 20px; }
  .coa-fields li.flag { margin: 2px 0; }
}