/* =========================================================
   AI CFO News — design tokens
   Palette: ledger-night navy + aged gold + digital-signal teal
   Type: serif display (system) + monospace data/labels + sans body
   ========================================================= */

:root {
  --ink: #0A0F1E;
  --ink-soft: #0D1424;
  --panel: #121A2E;
  --panel-2: #16203A;
  --line: #223052;

  --paper: #ECEEE6;
  --paper-dim: #C9CDC2;

  --gold: #C6A15B;
  --gold-bright: #DDBB78;
  --signal: #35D0A0;
  --signal-dim: #229B79;
  --slate: #93A0B4;
  --coral: #E2665A;

  --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius: 4px;
  --wrap: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* =========================================================
   Reset
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 1rem; top: -3rem;
  background: var(--signal); color: var(--ink);
  padding: 0.6rem 1rem; border-radius: var(--radius);
  font-family: var(--font-mono); font-size: 0.85rem;
  transition: top 0.2s var(--ease); z-index: 200;
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 0.6rem;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--paper);
}

h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); margin-bottom: 2.5rem; }

.accent-gold { color: var(--gold); font-style: italic; }

/* =========================================================
   Reveal-on-scroll (progressive enhancement)
   ========================================================= */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--gold);
  color: var(--ink);
}
.btn-primary:hover { background: var(--gold-bright); }

.btn-ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--signal); color: var(--signal); }

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 15, 30, 0.86);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-mark {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 20px;
}
.mark-line { height: 2px; border-radius: 2px; background: var(--slate); }
.mark-line.l1 { width: 100%; background: var(--gold); }
.mark-line.l2 { width: 65%; background: var(--slate); }
.mark-line.l3 { width: 85%; background: var(--signal); }

.brand-text {
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--paper);
}
.brand-text.small { font-size: 0.95rem; }
.brand-dot { color: var(--signal); padding: 0 0.1rem; }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}
.primary-nav a { color: var(--slate); transition: color 0.2s var(--ease); }
.primary-nav a:hover { color: var(--paper); }
.nav-cta {
  color: var(--ink) !important;
  background: var(--signal);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
}
.nav-cta:hover { background: var(--gold-bright) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--paper); border-radius: 2px; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding: 6rem 0 0;
  background:
    radial-gradient(ellipse at 15% 0%, rgba(198,161,91,0.10), transparent 55%),
    radial-gradient(ellipse at 85% 20%, rgba(53,208,160,0.08), transparent 50%);
}

.hero-inner { max-width: 780px; text-align: left; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 1.2rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.4vw, 4.2rem);
  line-height: 1.08;
  margin-bottom: 1.4rem;
}

.hero-sub {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--slate);
  max-width: 60ch;
  margin: 0 0 2.2rem;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 4rem; }

/* Ledger ticker — signature element */
.ticker {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-soft);
  overflow: hidden;
  white-space: nowrap;
}
.ticker-track {
  display: inline-flex;
  align-items: center;
  animation: ticker-scroll 42s linear infinite;
  padding: 0.9rem 0;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
}
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.tk-item {
  display: inline-flex;
  align-items: baseline;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--paper-dim);
  padding: 0 2.2rem;
  border-right: 1px solid var(--line);
}
.tk-tag {
  font-weight: 700;
  letter-spacing: 0.04em;
}
.tk-tag.gold { color: var(--gold); }
.tk-tag.signal { color: var(--signal); }

a.tk-item {
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
a.tk-item:hover { color: var(--paper); }
a.tk-item:hover .tk-tag.gold { color: var(--gold-bright); }
a.tk-item:hover .tk-tag.signal { color: var(--signal); }
  list-style: none;
  margin: 0; padding: 1rem 1.5rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--paper-dim);
  display: flex; flex-direction: column; gap: 0.5rem;
}
.ticker-fallback .tk-tag { margin-right: 0.5rem; }
.ticker-fallback a { color: inherit; text-decoration: none; }
.ticker-fallback a:hover { color: var(--paper); }

/* =========================================================
   Pillars
   ========================================================= */
.pillars { padding: 6rem 0; }

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.pillar-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.pillar-card:hover { border-color: var(--gold); transform: translateY(-3px); }

.pillar-num {
  font-family: var(--font-mono);
  color: var(--signal);
  font-size: 0.85rem;
  margin: 0 0 1rem;
  letter-spacing: 0.05em;
}

.pillar-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.8rem;
}

.pillar-card p { color: var(--slate); margin: 0 0 1.4rem; }

.pillar-tags {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}
.pillar-tags li {
  border: 1px solid var(--line);
  color: var(--paper-dim);
  padding: 0.3rem 0.6rem;
  border-radius: 100px;
}

/* =========================================================
   Dispatches
   ========================================================= */
.dispatches { padding: 2rem 0 6rem; }

.dispatch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.dispatch-card {
  border-top: 2px solid var(--gold);
  padding-top: 1.4rem;
}

.dispatch-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--signal);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.9rem;
}
.dispatch-meta time { color: var(--slate); }

.dispatch-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.7rem;
  line-height: 1.3;
}
.dispatch-card h3 a { color: var(--paper); transition: color 0.2s var(--ease); }
.dispatch-card h3 a:hover { color: var(--gold); }
.dispatch-card p { color: var(--slate); margin: 0; font-size: 0.95rem; }
.dispatch-link {
  display: inline-block;
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--signal) !important;
}
.dispatch-link:hover { color: var(--gold-bright) !important; }

.view-all-dispatches {
  text-align: center;
  margin: 3rem 0 0;
}
.view-all-dispatches a {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--signal);
}
.view-all-dispatches a:hover { color: var(--gold); }

/* =========================================================
   About
   ========================================================= */
.about {
  padding: 6rem 0;
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.about-inner { max-width: 700px; }
.about p { color: var(--slate); font-size: 1.05rem; margin: 0 0 1.2rem; }

/* =========================================================
   FAQ
   ========================================================= */
.faq { padding: 6rem 0; }
.faq-inner { max-width: 760px; }

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.3rem 1.5rem;
  transition: border-color 0.25s var(--ease);
}
.faq-item:hover { border-color: var(--gold); }
.faq-item[open] { border-color: var(--signal); }

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.2rem 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--signal);
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: transform 0.25s var(--ease);
}
.faq-item[open] summary::after { content: "−"; }

.faq-item p {
  color: var(--slate);
  font-size: 0.95rem;
  margin: 0 0 1.4rem;
  max-width: 65ch;
}

/* =========================================================
   Join / CTA
   ========================================================= */
.join { padding: 6rem 0; text-align: center; }
.join-inner { max-width: 560px; margin: 0 auto; }
.join p { color: var(--slate); margin: 0.6rem 0 2rem; }

.join-form {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.join-input {
  flex: 1 1 260px;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.95rem;
}
.join-input:focus { border-color: var(--signal); }
.join-input::placeholder { color: var(--slate); }

.join-status {
  min-height: 1.4rem;
  margin: 1rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--signal);
}
.join-status.error { color: var(--coral); }

.join-fineprint {
  font-size: 0.78rem;
  color: var(--slate);
  margin-top: 0.6rem !important;
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 3rem 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
}
.footer-tag { color: var(--slate); font-size: 0.85rem; margin: 0.4rem 0 0; }
.footer-nav { display: flex; gap: 1.5rem; font-family: var(--font-mono); font-size: 0.85rem; }
.footer-nav a { color: var(--slate); }
.footer-nav a:hover { color: var(--paper); }
.footer-legal { color: var(--slate); font-size: 0.78rem; font-family: var(--font-mono); margin: 0; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 860px) {
  .pillar-grid, .dispatch-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: absolute;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--ink-soft);
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s var(--ease);
  }
  .primary-nav.is-open { max-height: 320px; }
  .primary-nav a { width: 100%; padding: 1rem 1.5rem; border-bottom: 1px solid var(--line); }
  .nav-cta { margin: 1rem 1.5rem; text-align: center; justify-content: center; }
  .hero { padding-top: 4rem; }
  .footer-inner { flex-direction: column; }
}

/* =========================================================
   Article / Dispatch pages
   ========================================================= */
.breadcrumb {
  padding: 1.4rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--slate);
}
.breadcrumb a { color: var(--slate); }
.breadcrumb a:hover { color: var(--signal); }
.breadcrumb span.sep { margin: 0 0.5rem; color: var(--line); }
.breadcrumb span.current { color: var(--paper-dim); }

.article-header {
  padding: 2.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 10% 0%, rgba(198,161,91,0.08), transparent 55%);
}
.article-header-inner { max-width: 760px; }

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--signal);
  margin: 0 0 1.2rem;
}
.article-meta .pillar-tag { color: var(--gold); }
.article-meta .dot { color: var(--line); }
.article-meta time,
.article-meta .read-time { color: var(--slate); text-transform: none; letter-spacing: 0; }

.article-header h1 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  line-height: 1.12;
  margin-bottom: 1.2rem;
}

.article-dek {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--slate);
  max-width: 62ch;
  margin: 0;
}

.article-body-section { padding: 3.5rem 0 1rem; }
.article-body {
  max-width: 700px;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--paper);
}
.article-body p { margin: 0 0 1.4rem; }
.article-body h2 {
  font-size: 1.5rem;
  margin: 2.6rem 0 1.1rem;
}
.article-body h3 {
  font-size: 1.15rem;
  margin: 2rem 0 0.9rem;
}
.article-body ul, .article-body ol {
  margin: 0 0 1.4rem;
  padding-left: 1.4rem;
  color: var(--paper);
}
.article-body li { margin-bottom: 0.55rem; }
.article-body a { color: var(--gold); text-decoration: underline; text-underline-offset: 2px; }
.article-body a:hover { color: var(--gold-bright); }
.article-body strong { color: var(--paper); }

.pull-quote {
  border-left: 2px solid var(--gold);
  margin: 2.2rem 0;
  padding: 0.2rem 0 0.2rem 1.5rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--paper-dim);
}

.callout-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem 1.8rem;
  margin: 2rem 0;
}
.callout-box p:last-child { margin-bottom: 0; }
.callout-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--signal);
  margin: 0 0 0.7rem;
}

.article-tags {
  list-style: none;
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin: 2.4rem 0 0; padding: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}
.article-tags li {
  border: 1px solid var(--line);
  color: var(--paper-dim);
  padding: 0.3rem 0.6rem;
  border-radius: 100px;
}

.article-share {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 3rem 0 0;
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--slate);
}
.article-share a.back-home { color: var(--signal); }
.article-share a.back-home:hover { color: var(--gold); }

.related-section { padding: 4rem 0 6rem; }
.related-section h2 { font-size: 1.5rem; margin-bottom: 2rem; }

/* =========================================================
   Dispatches index (/dispatches/)
   ========================================================= */
.archive-hero {
  padding: 2.5rem 0 1rem;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 10% 0%, rgba(198,161,91,0.08), transparent 55%);
}
.archive-hero h1 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  line-height: 1.12;
  margin: 0 0 1rem;
}
.archive-hero .archive-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--signal);
  margin: 0 0 1.2rem;
}
.archive-pillar-section {
  padding: 3.5rem 0 0.5rem;
}
.archive-pillar-section:last-of-type { padding-bottom: 4rem; }
.archive-pillar-section h2 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}