@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
  --kd: hsl(230, 65%, 28%);
  --kv: hsl(230, 75%, 48%);
  --km: hsl(228, 55%, 38%);
  --paper: #F5F0EB;
  --paper-warm: hsl(38, 30%, 93%);
  --surface: #fff;
  --rojo: hsl(355, 70%, 48%);
  --rd: hsl(355, 70%, 40%);
  --ink: hsl(230, 25%, 12%);
  --im: hsl(230, 15%, 40%);
  --pz: #5A6068;
  --gr: #888780;
  --gl: #D3D1C7;
  --border: hsl(230, 10%, 88%);
  --fs: 'Space Grotesk', sans-serif;
  --fu: 'DM Sans', system-ui, sans-serif;
  --cw: 720px;
  --cwf: 940px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--paper); color: var(--ink); font-family: var(--fu); -webkit-font-smoothing: antialiased; }
::selection { background: hsl(230, 75%, 48%, 0.15); }

/* ─── NAV ─── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--kd);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
  height: 52px;
  transition: box-shadow .25s ease;
}
.nav.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.12); }
.nav-logo { text-decoration: none; display: flex; align-items: center; gap: 10px; }
.nav-links { display: flex; gap: clamp(.8rem, 2.5vw, 2rem); }
.nav-links a {
  font: 500 11px var(--fs);
  letter-spacing: .1em; text-transform: uppercase;
  color: rgba(245,240,235,.45);
  text-decoration: none; transition: color .15s;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--paper); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 100%; height: 2px; background: var(--rojo);
}

/* ─── HERO ─── */
.hero {
  max-width: var(--cw);
  margin: 0 auto;
  padding: clamp(72px, 12vw, 140px) clamp(1.5rem, 4vw, 3rem) 64px;
  position: relative;
}
.hero-title {
  font: 600 clamp(2.2rem, 5vw, 3.2rem)/1.08 var(--fs);
  color: var(--ink);
  letter-spacing: -.025em;
  margin-bottom: 20px;
  max-width: 16ch;
}
.hero-sub {
  font: 300 clamp(1rem, 1.6vw, 1.15rem)/1.6 var(--fu);
  color: var(--pz);
  max-width: 36ch;
  margin-bottom: 40px;
}
.hero-ambient {
  position: absolute;
  right: clamp(1rem, 6vw, 4rem);
  top: 50%;
  transform: translateY(-50%);
  opacity: .06;
  pointer-events: none;
}
@media (max-width: 800px) { .hero-ambient { display: none; } }

/* ─── PAGE HEADER (subpages) ─── */
.page-header {
  max-width: var(--cw);
  margin: 0 auto;
  padding: clamp(56px, 8vw, 96px) clamp(1.5rem, 4vw, 3rem) 48px;
  border-bottom: 1px solid var(--border);
}
.page-header h1 {
  font: 600 clamp(1.8rem, 4vw, 2.4rem)/1.1 var(--fs);
  color: var(--ink);
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.page-header .page-dek {
  font: 300 clamp(.95rem, 1.4vw, 1.05rem)/1.65 var(--fu);
  color: var(--pz);
  max-width: 40ch;
}

/* ─── SEPARATOR ─── */
.sep {
  max-width: var(--cw);
  margin: 0 auto;
  border: none;
  border-top: .5px dashed var(--gl);
}

/* ─── ABOUT BLOCK ─── */
.about {
  max-width: var(--cw);
  margin: 40px auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}
.about p {
  font: 300 1.05rem/1.75 var(--fu);
  color: var(--ink);
  max-width: 52ch;
}
.about .highlight {
  color: var(--kd);
  font-weight: 500;
}

/* ─── SECTION HEADERS ─── */
.section { max-width: var(--cw); margin: 80px auto; padding: 0 clamp(1.5rem, 4vw, 3rem); }
.section-full { max-width: var(--cwf); margin: 80px auto; padding: 0 clamp(1.5rem, 4vw, 3rem); }
.sh { display: flex; align-items: center; gap: 10px; margin-bottom: 32px; }
.sh-num { font: 700 .75rem var(--fs); letter-spacing: .06em; color: var(--rojo); }
.sh-dash { color: var(--gl); }
.sh-label { font: 500 .7rem var(--fs); letter-spacing: .12em; text-transform: uppercase; color: var(--gr); }

/* ─── ESSAY CARDS ─── */
.essay-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 640px) { .essay-grid { grid-template-columns: 1fr; } }

.essay-card {
  display: flex; flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none; color: inherit;
  overflow: hidden;
  transition: border-color .2s, box-shadow .25s, transform .25s;
  position: relative;
}
.essay-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 0;
  border-radius: 8px 0 0 0;
  transition: height .3s ease;
}
.essay-card:hover {
  border-color: var(--ink);
  box-shadow: 0 8px 32px rgba(0,0,0,.06);
  transform: translateY(-2px);
}
.essay-card:hover::before { height: 100%; }

.ec-icon { padding: 20px 24px 4px; display: flex; align-items: center; }
.ec-body { padding: 8px 24px 20px; flex: 1; display: flex; flex-direction: column; }
.ec-top { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.ec-num { font: 300 1.2rem var(--fs); line-height: 1; }
.ec-bar { width: 20px; height: 2px; border-radius: 1px; }
.ec-title {
  font: 600 1rem/1.25 var(--fs);
  color: var(--ink);
  letter-spacing: -.01em;
  margin-bottom: 8px;
}
.ec-desc {
  font: 300 .86rem/1.6 var(--fu);
  color: var(--pz);
  flex: 1;
}
.ec-meta {
  font: 500 .58rem var(--fs);
  letter-spacing: .08em;
  color: var(--gr);
  margin-top: 14px;
  display: flex; justify-content: space-between; align-items: center;
}
.ec-arrow { color: var(--gl); transition: color .15s, transform .2s; }
.essay-card:hover .ec-arrow { color: var(--rojo); transform: translate(2px, -2px); }

/* ─── TOOL SECTION ─── */
.tool-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 720px) { .tool-split { grid-template-columns: 1fr; gap: 32px; } }

.tool-title {
  font: 700 clamp(1.4rem, 2.5vw, 1.8rem)/1.15 var(--fs);
  color: var(--ink);
  letter-spacing: -.02em;
  margin-bottom: 16px;
  max-width: 14ch;
}
.tool-desc {
  font: 300 1rem/1.65 var(--fu);
  color: var(--pz);
  margin-bottom: 20px;
}
.tool-features {
  display: flex; flex-wrap: wrap; gap: 16px;
  margin-bottom: 24px;
}
.tool-feat {
  display: flex; align-items: center; gap: 6px;
  font: 500 .68rem var(--fs);
  letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink);
}
.tool-cta {
  font: 600 .72rem var(--fs);
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--rojo);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
  transition: gap .15s;
}
.tool-cta:hover { gap: 10px; }

/* Browser mockup */
.browser {
  background: var(--surface);
  border-radius: 10px;
  box-shadow: 0 8px 40px rgba(0,0,0,.07);
  border: 1px solid var(--border);
  overflow: hidden;
}
.browser-bar {
  height: 38px;
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 14px; gap: 7px;
}
.browser-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gl); }
.browser-url { flex: 1; text-align: center; font: 400 10px var(--fu); color: var(--gr); }
.browser-content { padding: 24px; }
.meter-heading { font: 700 .85rem var(--fs); color: var(--ink); margin-bottom: 18px; }
.meter-group { display: flex; flex-direction: column; gap: 12px; }
.meter-row { display: grid; grid-template-columns: 84px 1fr 28px; align-items: center; gap: 8px; }
.meter-label { font: 600 .58rem var(--fs); letter-spacing: .08em; text-transform: uppercase; color: var(--ink); }
.meter-track { height: 7px; background: rgba(0,0,0,.04); border-radius: 4px; overflow: hidden; }
.meter-fill { height: 100%; border-radius: 4px; transition: width 1.4s cubic-bezier(.22, 1, .36, 1); }
.meter-val { font: 300 .82rem var(--fs); color: var(--ink); text-align: right; }
.meter-score { margin-top: 20px; padding-top: 14px; border-top: .5px solid var(--gl); display: flex; align-items: baseline; gap: 4px; }
.meter-score-num { font: 300 2rem var(--fs); color: var(--ink); line-height: 1; }
.meter-score-label { font: 500 .7rem var(--fs); color: var(--gr); }

/* ─── TERRITORY GRID ─── */
.territory-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: .5px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
@media (max-width: 540px) { .territory-grid { grid-template-columns: 1fr; } }

.territory-cell {
  padding: clamp(24px, 4vw, 40px);
  border: .5px solid var(--border);
  transition: background .25s;
  position: relative;
}
.territory-cell:hover { background: rgba(255,255,255,.5); }
.territory-cell::after {
  content: '';
  position: absolute; bottom: 12px; right: 16px;
  width: 0; height: 1.5px;
  background: var(--rojo);
  transition: width .3s ease;
}
.territory-cell:hover::after { width: 24px; }
.territory-icon { margin-bottom: 18px; }
.territory-title { font: 600 .95rem/1.3 var(--fs); color: var(--ink); margin-bottom: 8px; }
.territory-desc { font: 300 .86rem/1.6 var(--fu); color: var(--pz); }

/* ─── NEWSLETTER CTA ─── */
.cta-section {
  max-width: var(--cw);
  margin: 80px auto 0;
  padding: 40px clamp(1.5rem, 4vw, 3rem) 40px calc(clamp(1.5rem, 4vw, 3rem) + 24px);
  border-left: 3px solid var(--rojo);
}
.cta-heading { font: 700 clamp(1.1rem, 2vw, 1.35rem)/1.3 var(--fs); color: var(--ink); margin-bottom: 8px; }
.cta-body { font: 300 .9rem/1.6 var(--fu); color: var(--gr); margin-bottom: 24px; max-width: 40ch; }
.cta-form { display: flex; max-width: 420px; }
.cta-form input {
  flex: 1; font: 300 .9rem var(--fu); padding: 14px 16px;
  border: 1.5px solid var(--gl); border-right: none;
  background: var(--paper); color: var(--ink); outline: none;
  border-radius: 4px 0 0 4px;
}
.cta-form input::placeholder { color: var(--gr); }
.cta-form input:focus { border-color: var(--kv); }
.cta-form button {
  font: 600 .78rem var(--fs); letter-spacing: .04em;
  padding: 14px 28px; background: var(--rojo); color: var(--paper);
  border: none; cursor: pointer; border-radius: 0 4px 4px 0;
  transition: background .15s; white-space: nowrap;
}
.cta-form button:hover { background: var(--rd); }

/* ─── CONTENT SECTIONS (subpages) ─── */
.content-section {
  max-width: var(--cw);
  margin: 48px auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}
.content-section h2 {
  font: 600 1.15rem/1.25 var(--fs);
  color: var(--ink);
  margin-bottom: 16px;
}
.content-section p {
  font: 300 .95rem/1.75 var(--fu);
  color: var(--ink);
  max-width: 42ch;
  margin-bottom: 12px;
}
.content-section p + p { margin-top: 4px; }
.content-divider {
  max-width: var(--cw);
  margin: 0 auto;
  border: none;
  border-top: 1px solid var(--border);
}

/* ─── VALUE CARDS ─── */
.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}
@media (max-width: 600px) { .value-grid { grid-template-columns: 1fr; } }
.value-card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  border-left: 3px solid var(--kv);
}
.value-card h3 {
  font: 600 .9rem/1.3 var(--fs);
  color: var(--kd);
  margin-bottom: 8px;
}
.value-card p {
  font: 300 .85rem/1.6 var(--fu);
  color: var(--pz);
  margin-bottom: 0;
}

/* ─── PRINCIPLES LIST ─── */
.principles {
  list-style: none; padding: 0;
  margin-top: 16px;
}
.principles li {
  font: 300 .92rem/1.65 var(--fu);
  color: var(--ink);
  padding: 6px 0 6px 20px;
  position: relative;
  max-width: 42ch;
}
.principles li::before {
  content: "\2014";
  position: absolute; left: 0;
  color: var(--rojo); font-weight: 700;
}

/* ─── ARCHIVE LIST ─── */
.archive-list {
  display: flex; flex-direction: column;
  gap: 0;
}
.archive-item {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: background .15s;
}
.archive-item:first-child { border-top: 1px solid var(--border); }
.archive-item:hover { background: rgba(255,255,255,.4); padding-left: 12px; padding-right: 12px; margin: 0 -12px; border-radius: 6px; }
.archive-num { font: 300 1.1rem var(--fs); color: var(--gr); }
.archive-info { display: flex; flex-direction: column; gap: 4px; }
.archive-title { font: 600 .95rem/1.25 var(--fs); color: var(--ink); }
.archive-desc { font: 300 .82rem/1.5 var(--fu); color: var(--pz); }
.archive-meta { font: 500 .55rem var(--fs); letter-spacing: .08em; color: var(--gr); text-align: right; white-space: nowrap; }
.archive-arrow { color: var(--gl); transition: color .15s, transform .2s; }
.archive-item:hover .archive-arrow { color: var(--rojo); transform: translate(2px, -2px); }

/* ─── CONTACT ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}
@media (max-width: 600px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color .2s, box-shadow .2s;
}
.contact-card:hover {
  border-color: var(--ink);
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
}
.contact-card-icon { margin-bottom: 16px; }
.contact-card h3 {
  font: 600 .85rem/1.3 var(--fs);
  color: var(--ink);
  margin-bottom: 8px;
}
.contact-card p {
  font: 300 .85rem/1.6 var(--fu);
  color: var(--pz);
  margin-bottom: 12px;
}
.contact-link {
  font: 500 .7rem var(--fs);
  letter-spacing: .06em;
  color: var(--rojo);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
  transition: gap .15s;
}
.contact-link:hover { gap: 10px; }

/* ─── FOOTER ─── */
.footer { background: var(--kd); color: var(--paper); margin-top: 80px; position: relative; }
.footer-stripe { height: 3px; background: var(--rojo); }
.footer-grid {
  display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 36px;
  max-width: 960px; margin: 0 auto;
  padding: 44px clamp(1.5rem, 4vw, 3rem) 32px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }

.footer-tagline { display: block; font: 500 .65rem var(--fs); letter-spacing: .12em; text-transform: uppercase; color: rgba(245,240,235,.4); margin-top: 12px; }
.footer-city { display: block; font: 500 .65rem var(--fs); letter-spacing: .12em; text-transform: uppercase; color: rgba(245,240,235,.22); margin-top: 2px; margin-bottom: 14px; }
.footer-pulse { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.footer-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--rojo); animation: pulse 2s ease infinite; }
.footer-revision { font: 400 .5rem var(--fs); letter-spacing: .1em; text-transform: uppercase; color: rgba(245,240,235,.2); display: block; margin-top: 4px; width: 100%; }
.footer-nav { display: flex; flex-direction: column; gap: 12px; }
.footer-nav a { font: 500 .68rem var(--fs); letter-spacing: .1em; text-transform: uppercase; color: rgba(245,240,235,.45); text-decoration: none; transition: color .15s; }
.footer-nav a:hover { color: var(--paper); }
.footer-cta-label { font: 300 .9rem var(--fu); color: var(--paper); display: block; margin-bottom: 12px; }
.footer-form { display: flex; max-width: 300px; }
.footer-form input { flex: 1; font: 300 .82rem var(--fu); padding: 10px 12px; border: 1.5px solid rgba(245,240,235,.12); border-right: none; background: rgba(245,240,235,.05); color: var(--paper); outline: none; border-radius: 4px 0 0 4px; }
.footer-form input::placeholder { color: rgba(245,240,235,.25); }
.footer-form button { font: 600 .72rem var(--fs); padding: 10px 16px; background: var(--rojo); color: var(--paper); border: none; cursor: pointer; border-radius: 0 4px 4px 0; white-space: nowrap; transition: background .15s; }
.footer-form button:hover { background: var(--rd); }
.footer-social { display: flex; gap: 14px; margin-top: 14px; }
.footer-social a { color: rgba(245,240,235,.35); transition: color .15s; }
.footer-social a:hover { color: var(--paper); }
.footer-legal { font: 400 .55rem var(--fs); color: rgba(245,240,235,.12); text-align: center; padding: 16px 0 14px; letter-spacing: .06em; }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }

/* ─── ARTICLE PAGE OVERRIDES ─── */
/* When shared-v2 loads BEFORE production CSS, these ensure v2 chrome wins */
.nav {
  position: sticky !important;
  top: 0 !important;
  z-index: 100 !important;
  background: var(--kd) !important;
}
.footer {
  background: var(--kd) !important;
  margin-top: 80px !important;
}
/* Hide production header/footer when v2 nav is present */
.site-header, .site-footer { display: none !important; }
/* Article main needs to lose the backdrop-card layout */
body:has(.nav) main.page-enter {
  margin: 0 !important;
  border-radius: 0 !important;
  min-height: auto !important;
  box-shadow: none !important;
}
body:has(.nav) main.page-enter.visible {
  opacity: 1 !important;
  transform: none !important;
}
/* Ensure article SVG illustrations breathe within v2 layout */
body:has(.nav) .il-essay {
  margin: 2.5rem auto;
  max-width: 100%;
  border-radius: 8px;
  overflow: visible;
}
/* Article body typography polish for v2 context */
body:has(.nav) .essay-body p {
  font-family: var(--fu, 'DM Sans', system-ui, sans-serif);
  font-size: 1.05rem;
  line-height: 1.85;
  font-weight: 300;
}
body:has(.nav) .essay-title {
  font-family: var(--fs, 'Space Grotesk', sans-serif);
}
body:has(.nav) .essay-header {
  border-bottom-color: var(--border, hsl(230, 10%, 88%));
}

/* ─── ARTICLE BODY DS V2 OVERRIDES ─── */
body:has(.nav) .essay-header { border-bottom: 1px solid var(--border, #D3D1C7); }
body:has(.nav) .essay-title {
  font-family: var(--fs, 'Space Grotesk', sans-serif);
  font-weight: 600;
  color: var(--ink, hsl(230, 25%, 12%));
  letter-spacing: -.025em;
}
body:has(.nav) .essay-tag {
  font-family: var(--fs);
  border-color: var(--border);
  color: var(--gr);
}
body:has(.nav) .essay-subtitle {
  font-family: var(--fu, 'DM Sans', system-ui, sans-serif);
  font-weight: 300;
  color: var(--pz);
}
body:has(.nav) .essay-meta {
  font-family: var(--fs);
  color: var(--gr);
}
body:has(.nav) .essay-body p {
  font-family: var(--fu);
  font-weight: 300;
  color: var(--ink);
}
body:has(.nav) .pull-quote {
  font-family: var(--fs);
  border-left-color: var(--rojo);
  color: var(--ink);
}
body:has(.nav) .callout {
  border-color: var(--border);
  background: var(--surface, #fff);
  border-radius: 8px;
}
body:has(.nav) .section-marker {
  background: var(--kd, hsl(230, 65%, 28%));
}
body:has(.nav) .section-marker-label {
  color: var(--kv, hsl(230, 75%, 48%));
  font-family: var(--fs);
}
body:has(.nav) .essay-section-title {
  font-family: var(--fs);
  color: var(--ink);
}
body:has(.nav) .essay-section-title .section-accent {
  color: var(--kv);
}
body:has(.nav) .hab-cell, body:has(.nav) .two-col {
  font-family: var(--fu);
}
body:has(.nav) .col-label, body:has(.nav) .hab-a {
  font-family: var(--fs);
  color: var(--kv);
}
body:has(.nav) .refs { border-top-color: var(--border); }
body:has(.nav) .ref-item { border-bottom-color: var(--border); font-family: var(--fu); }
body:has(.nav) .ref-author { font-family: var(--fs); }
body:has(.nav) .question-item { border-color: var(--border); font-family: var(--fu); }
body:has(.nav) .q-mark { color: var(--rojo); }
body:has(.nav) .concept-tags .concept-tag,
body:has(.nav) .faq-item h3 {
  font-family: var(--fs);
}
body:has(.nav) .next-essay-link {
  border-color: var(--border);
  border-left: 3px solid var(--rojo);
  border-radius: 8px;
}
body:has(.nav) .next-essay-link:hover {
  border-color: var(--ink);
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
}
/* Hide production share dock and TOC in v2 context */
body:has(.nav) .share-dock,
body:has(.nav) .essay-toc,
body:has(.nav) .reading-progress { display: none !important; }