*{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#FAFAF8;--text:#1A1A1A;--muted:#6B6B6B;--border:#E0E0DC;--green:#2B6B3D;--green-light:#E8F2EB;--red:#B83A2A;--red-light:#FCEAE8;--cream:#F5F0E8;--surface:#fff;--gold:#B8860B;--blue:#185FA5;--blue-light:#EAF1F8;--purple:#534AB7;--purple-light:#EEEDF8}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6;font-size:15px}
::selection{background:rgba(43,107,61,.15)}
a{color:inherit;text-decoration:none}
.display{font-family:'Fraunces',serif}
.mono{font-family:'IBM Plex Mono',monospace}
img{max-width:100%}

/* Layout */
.wrap{max-width:1100px;margin:0 auto;padding:0 32px}
.wrap-narrow{max-width:820px;margin:0 auto;padding:0 32px}
.section{padding:80px 0}
.section-alt{background:var(--cream)}

/* Nav — floating, prominent */
.nav{position:fixed;top:12px;left:50%;transform:translateX(-50%);z-index:50;transition:all .3s ease;background:rgba(255,255,255,.98);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:14px;box-shadow:0 4px 20px rgba(26,26,26,.06),0 1px 3px rgba(26,26,26,.04);width:calc(100% - 32px);max-width:1120px}
.nav.scrolled{box-shadow:0 8px 32px rgba(26,26,26,.12),0 2px 6px rgba(26,26,26,.06);background:rgba(255,255,255,1)}
.nav-inner{padding:10px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.nav-brand{font-family:'Fraunces',serif;font-weight:800;font-size:1.15rem;letter-spacing:-.02em;color:var(--text)}
.nav-links{display:flex;gap:4px;flex-wrap:wrap;align-items:center}
.nav-links a{color:var(--text);font-size:.875rem;font-weight:600;letter-spacing:-.005em;transition:all .2s ease;padding:8px 14px;border-radius:8px;position:relative}
.nav-links a:hover{color:var(--green);background:var(--green-light)}
.nav-links a.active{color:#fff;background:var(--green)}
.nav-links a.active:hover{color:#fff;background:var(--green);opacity:.92}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer;border-radius:8px;color:var(--text);align-items:center;justify-content:center}
.nav-toggle svg{width:22px;height:22px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.nav-toggle:hover{background:var(--green-light);color:var(--green)}
.nav-toggle .icon-close{display:none}
.nav.open .nav-toggle .icon-open{display:none}
.nav.open .nav-toggle .icon-close{display:block}
@media(max-width:900px){.nav-links a{font-size:.8rem;padding:6px 10px}.nav-inner{padding:8px 14px;gap:8px}}
@media(max-width:768px){
  .nav{width:calc(100% - 20px);top:10px}
  .nav-inner{padding:8px 12px}
  .nav-toggle{display:flex}
  .nav-links{display:none;flex-direction:column;width:100%;gap:2px;padding:10px 0 4px;border-top:1px solid var(--border);margin-top:6px}
  .nav.open .nav-links{display:flex}
  .nav-links a{width:100%;padding:11px 14px;font-size:.95rem;border-radius:10px}
}

/* Diagram tap-to-zoom */
img[src*="diagrams/"]{cursor:zoom-in;transition:transform .15s ease,box-shadow .15s ease}
@media(hover:hover){img[src*="diagrams/"]:hover{transform:scale(1.01);box-shadow:0 8px 24px rgba(26,26,26,.12)}}
.lightbox{position:fixed;inset:0;background:rgba(20,20,18,.94);z-index:200;display:none;align-items:center;justify-content:center;padding:24px;cursor:zoom-out;opacity:0;transition:opacity .2s ease;overflow:auto}
.lightbox.active{display:flex;opacity:1}
.lightbox-img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;touch-action:pinch-zoom;cursor:zoom-out;box-shadow:0 20px 60px rgba(0,0,0,.5);border-radius:6px;background:#fff}
.lightbox-close{position:fixed;top:16px;right:20px;background:rgba(255,255,255,.98);border:0;width:42px;height:42px;border-radius:50%;font-size:24px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text);box-shadow:0 4px 12px rgba(0,0,0,.25);z-index:201;font-family:'Inter',sans-serif;font-weight:500}
.lightbox-close:hover{background:#fff;transform:scale(1.05)}
.lightbox-hint{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.7);font-size:.75rem;font-family:'IBM Plex Mono',monospace;letter-spacing:.02em;pointer-events:none}
@media(max-width:768px){
  .lightbox{padding:8px}
  .lightbox-close{top:10px;right:10px;width:38px;height:38px;font-size:22px}
  .lightbox-hint{font-size:.7rem;bottom:12px}
}

/* Typography */
h1{font-family:'Fraunces',serif;font-weight:800;letter-spacing:-.03em}
h2{font-family:'Fraunces',serif;font-weight:700;font-size:clamp(1.5rem,3vw,2.2rem);letter-spacing:-.02em;margin-bottom:16px}
h3{font-family:'Fraunces',serif;font-weight:700;font-size:1rem;margin-bottom:8px}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-size:.7rem;font-weight:500;text-transform:uppercase;letter-spacing:.12em;color:var(--green);margin-bottom:12px}
.lead{font-size:1.1rem;color:var(--muted);max-width:820px;line-height:1.7}
p.body{font-size:1rem;line-height:1.75;margin-bottom:18px;max-width:760px}
p.body strong{color:var(--text)}

/* Hero */
.hero{min-height:88vh;display:flex;align-items:center;padding:120px 0 80px;position:relative}
.hero h1{font-size:clamp(2.5rem,6vw,4.5rem);line-height:1.05;margin-bottom:24px}
.hero .lead{font-size:1.2rem;margin-bottom:40px}
.hero-rule{width:80px;height:4px;background:var(--green);margin-bottom:32px}
.hero-meta{font-family:'IBM Plex Mono',monospace;font-size:.75rem;color:var(--muted);margin-top:48px;padding-top:24px;border-top:1px solid var(--border)}

/* Thesis cards */
.thesis{border-left:3px solid var(--green);padding:16px 0 16px 24px;margin-bottom:24px}
.thesis h3{font-size:1.05rem;margin-bottom:4px}
.thesis p{color:var(--muted);font-size:.9rem}
.callout{background:var(--cream);border-left:3px solid var(--green);border-radius:0 8px 8px 0;padding:20px 24px;margin:32px 0;max-width:760px}
.callout-eyebrow{font-family:'IBM Plex Mono',monospace;font-size:.7rem;font-weight:500;text-transform:uppercase;letter-spacing:.12em;color:var(--green);margin-bottom:10px}
.callout p{font-size:.95rem;line-height:1.65;margin-bottom:12px;color:var(--text)}
.callout p:last-of-type{margin-bottom:0}
.callout-source{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--muted);margin-top:14px;padding-top:12px;border-top:1px solid var(--border);letter-spacing:.02em}
.callout-source a{color:var(--muted);border-bottom:1px dotted var(--muted);transition:color .15s ease,border-color .15s ease}
.callout-source a:hover{color:var(--green);border-bottom-color:var(--green)}

/* Comparison table */
table{width:100%;border-collapse:collapse;font-size:.82rem}
th{font-family:'IBM Plex Mono',monospace;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);text-align:left;padding:12px;border-bottom:2px solid var(--border);font-weight:500}
td{padding:12px;border-bottom:1px solid var(--border);vertical-align:top}
.check{color:var(--green);font-weight:700}
.cross{color:var(--red);font-weight:700}
.partial{color:#B8860B;font-weight:500}
tr:hover{background:rgba(43,107,61,.02)}

/* Foundation / cards grid */
.found-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}
.found-card{padding:20px;border:1px solid var(--border);border-radius:6px;background:var(--surface)}
.found-card h3{font-size:.88rem;margin-bottom:6px}
.found-card p{font-size:.8rem;color:var(--muted);line-height:1.5}

/* Cost comparison */
.cost-box{padding:28px;border-radius:6px}
.cost-red{background:var(--red-light);border:1px solid rgba(184,58,42,.15)}
.cost-green{background:var(--green-light);border:1px solid rgba(43,107,61,.15)}
.cost-num{font-family:'Fraunces',serif;font-weight:800;font-size:2rem;letter-spacing:-.02em}
.cost-label{font-family:'IBM Plex Mono',monospace;font-size:.7rem;color:var(--muted);letter-spacing:.05em;text-transform:uppercase}

/* Timeline */
.timeline-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}
.tl-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0;margin-top:4px}
.tl-green{background:var(--green)}
.tl-yellow{background:#D4A017}
.tl-red{background:var(--red)}

/* Builder */
.builder{display:flex;gap:40px;flex-wrap:wrap}
.builder-bio{flex:1;min-width:300px}
.builder-bio p{line-height:1.7;margin-bottom:12px;font-size:.92rem}
.builder-card{width:240px;flex-shrink:0;border:1px solid var(--border);border-radius:6px;padding:20px;background:var(--surface);height:fit-content}
.builder-card .bc-label{font-family:'IBM Plex Mono',monospace;font-size:.6rem;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;display:block;margin-top:14px}
.builder-card .bc-label:first-child{margin-top:0}
.builder-card p{font-size:.82rem;margin:2px 0}

/* Buttons */
.btn{display:inline-block;padding:12px 28px;font-weight:600;font-size:.85rem;border-radius:4px;transition:all .2s;border:none;cursor:pointer}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:#245a33}
.btn-outline{border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--green);color:var(--green)}

/* Gate / form */
.gate{max-width:440px}
.gate input{width:100%;border:1px solid var(--border);border-radius:4px;padding:11px 14px;font-size:.9rem;background:var(--surface);font-family:'Inter',sans-serif;margin-bottom:10px}
.gate input:focus{outline:none;border-color:var(--green)}

/* Footer */
.footer{border-top:1px solid var(--border);padding:24px 0;margin-top:40px}
.footer-inner{max-width:1100px;margin:0 auto;padding:0 32px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer span{font-size:.75rem;color:var(--muted)}
.footer a{color:inherit;border-bottom:1px dotted var(--muted);transition:color .15s ease,border-color .15s ease}
.footer a:hover{color:var(--green);border-bottom-color:var(--green)}

/* Scroll fade */
.fade{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.fade.visible{opacity:1;transform:translateY(0)}

/* ===== Enclave (LIGHT version) ===== */
.enclave{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:28px;position:relative;margin-top:24px}
.enclave-label{position:absolute;top:-13px;left:24px;background:var(--green);color:#fff;font-family:'IBM Plex Mono',monospace;font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;padding:5px 14px;border-radius:4px}
.enclave-members{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px}
.enc-member{border:1px solid var(--border);border-radius:8px;padding:16px;background:var(--bg);text-align:center}
.enc-member .nm{font-family:'Fraunces',serif;font-weight:700;font-size:1.1rem;margin-bottom:2px}
.enc-member .rl{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--muted);margin-bottom:10px}
.enc-lock{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:.6rem;letter-spacing:.06em;color:var(--green);background:var(--green-light);border-radius:3px;padding:3px 8px}
.enc-dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-left:6px;vertical-align:middle}
.enc-shared{border:1px solid var(--border);border-radius:8px;background:var(--bg);padding:14px 18px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.enc-shared .lbl{font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.enc-stores{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.enc-store{border:1px solid var(--border);border-radius:8px;background:var(--bg);padding:16px}
.enc-store .et{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--muted);margin-bottom:6px}
.enc-store .ev{font-family:'Fraunces',serif;font-weight:700;font-size:1.05rem;margin-bottom:4px}
.enc-store .ed{font-size:.78rem;color:var(--muted)}
.enc-foot{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:14px}
.enc-foot span{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--green)}
@media(max-width:680px){.enclave-members{grid-template-columns:repeat(2,1fr)}.enc-stores{grid-template-columns:1fr}}

/* ===== Data protection columns ===== */
.dp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.dp-col h3.colhead{font-size:1.05rem;border-bottom:1px solid var(--border);padding-bottom:8px;margin-bottom:18px}
.dp-item{border:1px solid var(--border);border-radius:6px;padding:12px 16px;background:var(--surface);font-weight:600;margin-bottom:4px}
.dp-note{font-size:.85rem;color:var(--muted);margin-bottom:16px}
.dp-plain{border:1px solid var(--border);border-radius:6px;padding:10px 14px;background:var(--surface);font-size:.85rem;margin-bottom:8px}
@media(max-width:768px){.dp-grid{grid-template-columns:1fr;gap:24px}}

/* ===== Diagram placeholder slot ===== */
.diagram-slot{border:1.5px dashed var(--green);border-radius:10px;background:var(--green-light);padding:32px;text-align:center;margin:24px 0}
.diagram-slot .dlabel{font-family:'IBM Plex Mono',monospace;font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--green);margin-bottom:8px}
.diagram-slot .dtitle{font-family:'Fraunces',serif;font-weight:700;font-size:1rem;margin-bottom:6px}
.diagram-slot .ddesc{font-size:.85rem;color:var(--muted);max-width:620px;margin:0 auto}
.diagram-slot img{border-radius:8px;border:1px solid var(--border);background:#fff}

/* Access overview banner */
.access-banner{background:var(--green-light);border:1px solid rgba(43,107,61,.2);border-radius:8px;padding:16px 20px;font-size:.85rem;color:var(--green);margin-bottom:32px;font-family:'IBM Plex Mono',monospace;letter-spacing:.02em}

/* CTA band */
.cta-band{background:var(--cream);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:64px 0}

/* page intro spacing for inner pages */
.page-top{padding-top:120px}

/* Term tooltips */
.term{border-bottom:1px dotted var(--muted);cursor:help;position:relative}
.term::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 6px);left:0;background:var(--cream);border:1px solid var(--border);border-radius:8px;padding:10px 14px;font-size:.82rem;line-height:1.5;max-width:280px;width:max-content;color:var(--text);opacity:0;pointer-events:none;transition:opacity .15s ease;z-index:100;box-shadow:0 4px 12px rgba(26,26,26,.08)}
.term:hover::after,.term.show::after{opacity:1}
@media(max-width:768px){.term::after{left:auto;right:0;max-width:240px}}