:root{
  --navy:#0b2340;
  --navy-2:#12385f;
  --blue:#23689e;
  --sky:#eaf3fb;
  --paper:#f6f8fb;
  --white:#ffffff;
  --ink:#182638;
  --muted:#64758a;
  --line:#d9e2eb;
  --line-strong:#c7d3df;
  --amber:#8b6418;
  --amber-bg:#fff7e7;
  --red:#983f3f;
  --red-bg:#fff0ef;
  --green:#326753;
  --green-bg:#eef7f2;
  --shadow:0 16px 38px rgba(11,35,64,.075);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Segoe UI",Arial,sans-serif;line-height:1.5}
a{color:inherit}
button,select{font-family:inherit}
.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:13px clamp(18px,4vw,58px);background:rgba(246,248,251,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand-wrap{display:flex;align-items:center;gap:12px;text-decoration:none}.mark{width:42px;height:42px;border-radius:10px;background:var(--navy);color:white;display:grid;place-items:center;font-weight:800;letter-spacing:.02em}.brand{font-weight:780;font-size:18px}.tagline{font-size:12px;color:var(--muted)}
nav{display:flex;gap:22px}nav a{text-decoration:none;font-size:13px;color:#465a72}nav a:hover{color:var(--blue)}
main{max-width:1320px;margin:auto;padding:0 clamp(18px,4vw,54px) 64px}
.hero{display:grid;grid-template-columns:1.07fr .93fr;gap:58px;align-items:center;padding:74px 0 40px}.prototype-line{display:flex;align-items:center;gap:11px;color:var(--muted);font-size:12px;margin-bottom:15px}.prototype-badge{font-size:10px;font-weight:800;letter-spacing:.11em;color:var(--blue);border:1px solid #aac7de;background:#f0f7fc;border-radius:999px;padding:5px 9px}.hero h1{font-size:clamp(44px,5vw,72px);line-height:.99;letter-spacing:-.047em;margin:0 0 23px;color:var(--navy);max-width:760px}.lede{font-size:19px;color:#41546b;max-width:730px}.hero-actions{display:flex;gap:10px;margin-top:28px;flex-wrap:wrap}.button{display:inline-block;text-decoration:none;border:1px solid var(--line-strong);background:white;color:var(--navy);border-radius:9px;padding:10px 14px;font-size:13px;font-weight:700}.button.primary{background:var(--navy);border-color:var(--navy);color:white}.button:hover{transform:translateY(-1px)}.principle{margin-top:24px;padding:14px 16px;border-left:3px solid var(--blue);background:white;border-radius:0 8px 8px 0;font-size:13px;color:#53657a}
.wall-diagram{position:relative;min-height:430px;display:grid;grid-template-columns:1fr 1.35fr 1fr;grid-template-rows:1fr 1.3fr 1fr;gap:10px}.wall{background:white;border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;box-shadow:var(--shadow);font-weight:800;letter-spacing:.065em;color:var(--navy)}.wall small{display:block;margin-top:5px;font-weight:500;letter-spacing:0;color:var(--muted)}.wall-proof{grid-column:2;grid-row:1}.wall-cost{grid-column:1;grid-row:2}.wall-legitimacy{grid-column:3;grid-row:2}.wall-jobs{grid-column:2;grid-row:3}.wall-core{grid-column:2;grid-row:2;border-radius:50%;background:var(--navy);color:white;display:grid;place-items:center;text-align:center;align-content:center;box-shadow:0 20px 50px rgba(11,35,64,.25)}.wall-core strong{line-height:1.05;font-size:24px}.wall-core small{font-size:11px;opacity:.72;margin-top:8px}.wall-proof:after,.wall-jobs:before,.wall-cost:after,.wall-legitimacy:before{content:"";position:absolute;background:#a8bdd1}.wall-proof:after{width:2px;height:28px;top:30%;left:50%}.wall-jobs:before{width:2px;height:28px;bottom:30%;left:50%}.wall-cost:after{height:2px;width:28px;left:31%;top:50%}.wall-legitimacy:before{height:2px;width:28px;right:31%;top:50%}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:26px 0 88px}.status-card{background:white;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 9px 26px rgba(11,35,64,.05);min-height:252px}.status-top{display:flex;justify-content:space-between;gap:10px;align-items:start}.wall-name{font-size:20px;font-weight:800;color:var(--navy)}.status-pill{font-size:10.5px;border-radius:999px;padding:5px 8px;font-weight:750;white-space:nowrap}.status-pill.rapid{background:var(--red-bg);color:var(--red)}.status-pill.tight{background:var(--amber-bg);color:var(--amber)}.status-pill.stable{background:var(--green-bg);color:var(--green)}.wall-question{font-size:12px;color:var(--muted);margin-top:8px;min-height:54px}.headline-metric{font-size:36px;font-weight:820;letter-spacing:-.045em;color:var(--navy);margin:14px 0 1px}.headline-label{font-size:12px;color:#55677c;min-height:42px}.spark{height:46px;margin:13px 0 6px}.spark svg{width:100%;height:100%;overflow:visible}.mini-evidence{font-size:11.5px;color:#596b80;border-top:1px solid var(--line);padding-top:10px;margin-top:8px}
.section{margin:96px 0}.section-heading{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:end;margin-bottom:28px}.compact-heading{margin-bottom:20px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--blue);margin-bottom:8px}.section-heading h2{font-size:36px;letter-spacing:-.035em;margin:0;color:var(--navy)}.section-heading p{margin:0;color:var(--muted);max-width:620px}.reading-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.reading-grid article{background:white;border:1px solid var(--line);border-radius:12px;padding:18px}.reading-grid article span,.method-grid article span{font-size:11px;font-weight:800;color:var(--blue)}.reading-grid h3,.method-grid h3{margin:8px 0 5px;color:var(--navy)}.reading-grid p,.method-grid p{font-size:12px;color:#5b6d82;margin:0}
.ladder-panel{background:white;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow)}.ladder{display:grid;grid-template-columns:1.2fr .25fr 1.2fr .25fr 1.2fr .25fr 1.2fr .25fr 1.2fr;align-items:center;gap:5px}.rung{padding:16px 12px;border-radius:12px;background:#edf3f8;border:1px solid #d5e2ed;min-height:89px;position:relative}.rung span{display:block;font-weight:800;color:var(--navy)}.rung small{display:block;color:var(--muted);margin-top:4px}.rung.alert{background:var(--red-bg);border-color:#e7c4c0}.rung.alert b{position:absolute;right:12px;top:9px;font-size:23px;color:var(--red)}.connector{text-align:center;color:#7f91a3;font-size:20px}.ladder-evidence{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}.ladder-evidence article{padding:16px;background:var(--paper);border-radius:10px;border:1px solid #e5ebf1}.metric{font-size:27px;font-weight:820;color:var(--navy);letter-spacing:-.03em}.ladder-evidence p{font-size:12px;color:#5c6e83;margin:4px 0 0}.callout{margin-top:18px;border-left:3px solid var(--blue);padding:12px 16px;background:#f0f6fb;border-radius:0 8px 8px 0;font-size:13px;color:#42556c}
.ledger-tools{display:flex;justify-content:space-between;gap:18px;align-items:center;margin:12px 0 18px;flex-wrap:wrap}.filter-row{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.filter-group{display:flex;gap:7px;flex-wrap:wrap}.filter-btn,select{font:inherit;font-size:12px;border:1px solid var(--line);background:white;color:#52647a;border-radius:999px;padding:8px 12px;cursor:pointer}.filter-btn.active{background:var(--navy);color:white;border-color:var(--navy)}select{border-radius:8px}.ledger-count{font-size:12px;color:var(--muted)}.ledger{display:grid;gap:10px}.evidence-row{background:white;border:1px solid var(--line);border-radius:12px;padding:16px;display:grid;grid-template-columns:108px 1.15fr 1.05fr 140px;gap:18px;align-items:start}.e-wall{font-weight:800;color:var(--navy)}.e-geo{font-size:11px;color:var(--muted);margin-top:3px}.e-title{font-weight:760}.e-value{font-size:21px;font-weight:820;color:var(--navy);margin-top:4px}.e-comp{font-size:12px;color:var(--muted);margin-top:5px}.e-current{font-size:12px;color:#52657a}.badges{display:flex;gap:5px;flex-wrap:wrap;margin-top:9px}.badge{font-size:10px;border-radius:999px;padding:4px 7px;background:#eef2f6;color:#5a6a7e}.direction-badge{font-size:10px;border-radius:999px;padding:4px 7px;background:var(--amber-bg);color:var(--amber)}.direction-badge.rapid{background:var(--red-bg);color:var(--red)}.e-source{text-align:right;font-size:11px}.e-source a{display:inline-block;color:var(--blue);font-weight:750;text-decoration:none;margin-bottom:6px}.e-source span{display:block;color:var(--muted)}details.caveat{grid-column:2/5;margin-top:-4px}details.caveat summary{font-size:11px;color:var(--blue);cursor:pointer}details.caveat p{font-size:11px;color:#647489;margin:8px 0 0;padding:9px 11px;background:#f7f9fb;border-radius:7px}
.source-summary{margin:-4px 0 18px;color:#5b6d81;font-size:13px}.source-summary strong{color:var(--navy)}.source-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.source-group{background:white;border:1px solid var(--line);border-radius:13px;overflow:hidden}.source-group>summary{list-style:none;cursor:pointer;padding:16px 18px;font-weight:800;color:var(--navy);display:flex;justify-content:space-between;align-items:center}.source-group>summary::-webkit-details-marker{display:none}.source-group>summary span{font-size:11px;font-weight:600;color:var(--muted)}.source-table{border-top:1px solid var(--line)}.source-row{padding:13px 18px;border-bottom:1px solid #edf1f5}.source-row:last-child{border-bottom:0}.source-row h4{margin:0;color:var(--navy);font-size:13px}.source-meta{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0}.source-row p{margin:0;font-size:11.5px;color:#607187}.source-row .source-note{margin-top:4px;color:#7a8795}
.scenario-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.scenario{background:white;border:1px solid var(--line);border-radius:14px;padding:18px;position:relative}.scenario h3{margin:0 0 4px;color:var(--navy)}.scenario .s-status{font-size:11px;font-weight:750;color:var(--blue);margin-bottom:14px}.scenario ul{padding-left:17px;color:#56687c;font-size:12px}.scenario li{margin-bottom:7px}.scenario .weakens{border-top:1px solid var(--line);padding-top:10px;margin-top:12px;font-size:11px;color:#6a798b}.horizon{position:absolute;right:14px;top:14px;font-size:10px;color:#8793a2}
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.method-grid article{background:white;border:1px solid var(--line);border-radius:12px;padding:18px}.method-note{margin-top:14px;padding:14px 16px;background:var(--navy);color:white;border-radius:10px;font-size:12px}
footer{max-width:1320px;margin:auto;padding:32px clamp(18px,4vw,54px) 44px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:#68788b;font-size:12px}
.empty-state{padding:24px;background:white;border:1px solid var(--line);border-radius:12px;color:var(--muted);text-align:center}
@media(max-width:1080px){nav{display:none}.hero{grid-template-columns:1fr}.wall-diagram{max-width:650px}.status-grid{grid-template-columns:repeat(2,1fr)}.reading-grid{grid-template-columns:repeat(2,1fr)}.section-heading{grid-template-columns:1fr}.ladder{grid-template-columns:1fr}.connector{transform:rotate(90deg)}.ladder-evidence{grid-template-columns:repeat(2,1fr)}.evidence-row{grid-template-columns:90px 1fr 1fr}.e-source{grid-column:2/4;text-align:left}details.caveat{grid-column:2/4}.scenario-grid{grid-template-columns:repeat(2,1fr)}.method-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.hero{padding-top:44px}.hero h1{font-size:44px}.wall-diagram{min-height:350px}.wall-core strong{font-size:18px}.status-grid,.reading-grid,.ladder-evidence,.scenario-grid,.method-grid,.source-groups{grid-template-columns:1fr}.section{margin:72px 0}.section-heading h2{font-size:30px}.evidence-row{grid-template-columns:1fr}.e-source,details.caveat{grid-column:1;text-align:left}.filter-row{align-items:stretch}.filter-group{width:100%}footer{flex-direction:column;gap:16px}.topbar{padding-left:16px;padding-right:16px}}
\n\n/* Observatory production refinements */\n\n.button.subtle{background:transparent;color:var(--navy);border-color:#cbd8e1}\n.update-strip{max-width:1320px;margin:10px auto 8px;display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;background:#0b2340;color:#fff;padding:16px 20px;border-radius:14px;box-shadow:0 16px 36px rgba(11,35,64,.12)}\n.update-strip .update-label{font-size:9px;font-weight:850;letter-spacing:.14em;color:#9cc3df;white-space:nowrap}\n.update-strip div:nth-child(2){font-size:11px;line-height:1.5;color:#dce7ef}\n.update-strip a{font-size:10px;color:#fff;text-decoration:none;white-space:nowrap;border-bottom:1px solid rgba(255,255,255,.38);padding-bottom:2px}\n@media(max-width:850px){.update-strip{grid-template-columns:1fr;gap:7px}.update-strip a{white-space:normal}}\n
/* v1.1: qualitative wall readings. Headline percentages are intentionally kept out
   of the status layer; numeric observations remain available in the evidence ledger. */
.assessment-label{font-size:9px;letter-spacing:.13em;font-weight:800;color:#7f91a4;margin-top:18px}
.assessment-text{font-size:13px;line-height:1.55;color:#334a60;margin-top:6px;min-height:100px}
.signal-line{font-size:10.5px;line-height:1.45;color:#607287;border-top:1px solid var(--line);padding-top:10px;margin-top:12px}
.evidence-basis{font-size:10px;color:#8593a2;margin-top:8px}


/* v1.2: counter-signals and interpretive-role layer */
.counter-section{margin-top:84px}
.counter-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.counter-card{background:white;border:1px solid var(--line);border-radius:13px;padding:18px;box-shadow:0 8px 24px rgba(11,35,64,.045)}
.counter-kicker{font-size:9px;font-weight:850;letter-spacing:.13em;color:#62806b;margin-bottom:8px}
.counter-card h3{font-size:16px;line-height:1.25;color:var(--navy);margin:0 0 8px}
.counter-card p{font-size:11.5px;line-height:1.55;color:#5c6e82;margin:0;min-height:108px}
.counter-source{border-top:1px solid var(--line);padding-top:10px;margin-top:12px;display:flex;flex-direction:column;align-items:flex-start;gap:7px}
.counter-source a{font-size:10px;color:var(--blue);font-weight:750;text-decoration:none}
.balance-note{margin-top:14px;padding:14px 16px;border-left:3px solid #62806b;background:#f1f6f2;border-radius:0 9px 9px 0;font-size:12px;line-height:1.55;color:#455c4a}
.role-badge{font-size:10px;border-radius:999px;padding:4px 7px;font-weight:700}
.role-badge.pressure{background:#fbefea;color:#914d3e}
.role-badge.counter{background:#eaf4ed;color:#467154}
.role-badge.context{background:#eef3f7;color:#5b7185}
.direction-badge.counter{background:#eaf4ed;color:#467154}
.direction-badge.context{background:#eef3f7;color:#5b7185}
@media(max-width:1080px){.counter-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.counter-grid{grid-template-columns:1fr}.counter-card p{min-height:0}}


/* v1.3: founding-paper overview */
.paper-foundation{
  margin:30px 0 72px;
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(300px,.55fr);
  gap:22px;
  align-items:stretch
}
.paper-foundation-copy,
.paper-foundation-card{
  background:white;
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:0 10px 28px rgba(11,35,64,.045)
}
.paper-foundation-copy{padding:25px 28px}
.paper-foundation-copy h2{
  margin:0 0 12px;
  color:var(--navy);
  font-size:32px;
  letter-spacing:-.035em
}
.paper-foundation-copy p{
  margin:0 0 12px;
  color:#50657a;
  font-size:13px;
  line-height:1.67
}
.paper-foundation-copy .paper-lead{
  font-size:15px;
  color:#334c63
}
.paper-foundation-card{
  padding:24px;
  background:linear-gradient(160deg,#0a2137,#0d304b);
  color:white;
  display:flex;
  flex-direction:column
}
.paper-label{
  font-size:9px;
  letter-spacing:.14em;
  font-weight:800;
  color:#9dc3da;
  margin-bottom:12px
}
.paper-title{
  font-size:20px;
  line-height:1.25;
  font-weight:750;
  letter-spacing:-.025em
}
.paper-meta{
  margin-top:9px;
  font-size:11px;
  color:#b9cfdd
}
.paper-link{
  display:inline-flex;
  align-self:flex-start;
  margin:20px 0 17px;
  padding:9px 12px;
  border-radius:8px;
  background:white;
  color:#0a2941;
  font-size:11px;
  font-weight:800;
  text-decoration:none
}
.paper-link:hover{background:#e9f1f6}
.paper-citation{
  margin-top:auto;
  padding-top:15px;
  border-top:1px solid rgba(255,255,255,.14);
  color:#b6cad7;
  font-size:9.5px;
  line-height:1.5
}
@media(max-width:900px){
  .paper-foundation{grid-template-columns:1fr}
}

/* v1.4: connection to main ewansimpson.org site */
.nav-main-site{font-weight:700;color:var(--navy)}
.footer-main-link{display:inline-block;margin-top:6px;color:var(--blue);font-weight:700;text-decoration:none}
.footer-main-link:hover,.nav-main-site:hover{text-decoration:underline}


/* v1.6: reviewed research evidence promoted from the private Evidence Manager */
.research-summary { margin:0 0 18px; padding:14px 16px; background:#f7f3ea; border:1px solid #e3ded3; border-radius:10px; color:#33414d; }
.research-evidence-list { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
.research-evidence-card { background:#fffdf8; border:1px solid #dfe4e8; border-radius:12px; padding:18px; }
.research-evidence-card h3 { margin:10px 0 10px; font-size:1.02rem; line-height:1.35; }
.research-evidence-meta { display:flex; flex-wrap:wrap; gap:7px; align-items:center; }
.research-signal { margin:0 0 12px; color:#344653; line-height:1.55; }
.research-source { margin-top:12px; display:flex; flex-wrap:wrap; gap:8px 14px; font-size:.82rem; color:#657581; }
.research-source a { font-weight:700; }
@media (max-width:780px){ .research-evidence-list{ grid-template-columns:1fr; } }


/* v1.7: compact reviewed-research view with wall filters */
.research-summary { display:flex; justify-content:space-between; gap:18px; align-items:flex-start; flex-wrap:wrap; }
.research-view-status { color:#6a7882; font-size:.84rem; }
.research-controls { display:flex; justify-content:space-between; gap:14px; align-items:center; flex-wrap:wrap; margin:0 0 16px; }
.research-wall-filters { display:flex; flex-wrap:wrap; gap:8px; }
.research-toggle { border:1px solid #b8c6d1; background:#fff; color:#17364d; border-radius:999px; padding:8px 13px; font:inherit; font-size:.86rem; font-weight:700; cursor:pointer; }
.research-toggle:hover { background:#eef4f7; border-color:#8fa8ba; }
.research-toggle[hidden] { display:none; }
@media (max-width:640px){
  .research-controls { align-items:stretch; }
  .research-toggle { width:100%; }
}