:root{
  /* Archival paper base — cooler, less "latte cream" than the original stone/paper */
  --stone:#E2DCCE;--paper:#EBE5D7;--card:#F8F4EA;--ink:#1C1E19;--muted:#57584D;
  /* Oxblood — the brand/action color. Leather-bound law volumes, wax seals. */
  --brand:#6B2530;--brand-d:#4E1B23;
  /* Verdigris — the proof/verification color. What an old copper exhibit tag oxidizes into. */
  --verify:#3D5C51;--verify-d:#2C453C;
  /* Lightened verdigris for legibility on the dark band */
  --signal:#8FBBA8;
  --line:rgba(28,30,25,.14);--line-2:rgba(28,30,25,.30);--dark:#1C1E19;--maxw:1080px;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--stone);color:var(--ink);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased}
@media(prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:760px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-weight:600;letter-spacing:-0.4px;margin:0}
h1,h2{font-family:var(--serif);font-optical-sizing:auto;font-weight:580;letter-spacing:-0.6px;text-wrap:balance}
p{margin:0}
.eyebrow{color:var(--brand);font-size:12px;font-weight:700;letter-spacing:2.2px;text-transform:uppercase}
.eyebrow.on-dark{color:var(--signal)}
.eyebrow.verify{color:var(--verify-d)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.btn{display:inline-block;border-radius:8px;padding:12px 22px;font-size:14px;font-weight:600;cursor:pointer;border:0}
.btn-primary{background:var(--brand);color:var(--card)}
.btn-primary:hover{background:var(--brand-d)}
.btn-primary.on-brand{background:var(--card);color:var(--brand-d)}
.btn-primary.on-brand:hover{background:#fff}
.btn-ghost{border:1.5px solid var(--line-2);color:var(--ink);background:transparent}
.btn-ghost:hover{background:rgba(28,30,25,.05);border-color:rgba(28,30,25,.4)}
.btn-ghost.on-dark{border-color:rgba(248,244,234,.32);color:var(--stone)}
.btn-ghost.on-dark:hover{background:rgba(248,244,234,.08)}
.btn-ghost.on-brand{border-color:rgba(248,244,234,.4);color:var(--card)}
.btn-ghost.on-brand:hover{background:rgba(248,244,234,.1)}

/* ---------- header / nav ---------- */
header{position:sticky;top:0;z-index:20;background:rgba(226,220,206,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:0;font-size:0;line-height:0}
.brand .mk{width:155px;height:42px;background:url("pyra-logo.png") left center/contain no-repeat;flex:0 0 auto;filter:drop-shadow(0 1px 2px rgba(20,30,60,.20))}
.brand .mk::after{content:none}
.nav-links{display:flex;align-items:center;gap:19px}
.nav-links a{font-size:13.5px;color:var(--muted);white-space:nowrap;padding:4px 0;border-bottom:1.5px solid transparent}
.nav-links a:hover{color:var(--ink)}
.nav-links a.current{color:var(--ink);border-bottom-color:var(--brand);font-weight:600}
.hamb{display:none;background:transparent;border:0;font-size:24px;color:var(--ink);cursor:pointer}

/* ---------- page header (for interior/dedicated pages) ---------- */
.page-hero{padding:52px 0 44px;border-top:0}
.page-hero h1{font-size:38px;line-height:1.13;margin:14px 0 14px}
.page-hero .sub{color:var(--muted);font-size:16px;max-width:68ch}
.breadcrumb{font-size:12.5px;color:#8C897E;margin-bottom:10px}
.breadcrumb a{color:var(--brand)}

/* ---------- hero (home) ---------- */
.hero{padding:60px 0 68px;display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;position:relative}
.hero h1{font-size:46px;line-height:1.08;margin:16px 0 18px}
.hero p.sub{color:var(--muted);font-size:16px;max-width:94%}
.cta-row{display:flex;gap:12px;margin:26px 0;flex-wrap:wrap}
.trust{display:flex;gap:20px;flex-wrap:wrap;color:#6B6A5F;font-size:12.5px}
.trust span{display:inline-flex;align-items:center;gap:6px}
.trust svg{width:15px;height:15px;stroke:var(--verify-d);fill:none;stroke-width:2}
section{padding:54px 0;border-top:1px solid var(--line);position:relative}
.lead-label{text-align:center;margin-bottom:26px}
.center{text-align:center;margin:0 auto}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{text-align:center}
.feature .ic{width:48px;height:48px;border-radius:11px;background:rgba(107,37,48,.09);display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.feature .ic svg{width:24px;height:24px;stroke:var(--brand);fill:none;stroke-width:1.8}
.feature h3{font-size:16px;font-weight:600;margin-bottom:6px;font-family:"Inter",sans-serif}
.feature p{color:var(--muted);font-size:13.5px}
.feature a.more{font-size:12.5px;color:var(--brand);font-weight:600;display:inline-block;margin-top:8px}

/* ---------- flagship: the one place boldness is spent — inverted oxblood block ---------- */
.flagship{background:var(--brand);color:var(--card);border-radius:16px;padding:38px;display:grid;
  grid-template-columns:1.4fr .8fr;gap:32px;align-items:center;position:relative;overflow:hidden}
.flagship::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle,rgba(248,244,234,.08) 1px,transparent 1.4px);background-size:20px 20px;
  mask-image:radial-gradient(ellipse 60% 100% at 100% 0%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 60% 100% at 100% 0%,#000,transparent 75%)}
.flagship>*{position:relative;z-index:1}
.flagship .eyebrow{color:var(--signal)}
.flagship h2{color:var(--card)}
.pill{display:inline-block;background:rgba(248,244,234,.14);color:var(--card);font-size:13px;font-weight:700;padding:6px 14px;border-radius:20px;margin:10px 0 18px}
.incl div{font-size:14px;color:rgba(248,244,234,.88);margin-bottom:10px;display:flex;gap:10px;align-items:flex-start}
.incl svg{width:16px;height:16px;stroke:var(--signal);fill:none;stroke-width:2.4;flex:0 0 auto;margin-top:3px}
.buybox{text-align:center}
.buybox .btn{display:block;margin-bottom:12px}
.buybox .sec{font-size:12px;color:rgba(248,244,234,.65);margin-top:6px}

/* ---------- grain overlay (hero + dark bands) ---------- */
.grain{position:relative}
.grain::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:180px;opacity:.045;mix-blend-mode:multiply}
.grain.on-dark::before{opacity:.06;mix-blend-mode:overlay}
.grain>*{position:relative;z-index:1}

/* ---------- dark band (dashboard sample, verification sections) ---------- */
.band{background:var(--dark);color:#F8F4EA}
.band .wrap{padding:56px 24px;position:relative}
.band h2{color:#F8F4EA;font-size:28px;margin-bottom:14px}
.band .eyebrow{color:var(--signal)}
.band p{color:#AEACA1;font-size:14.5px;max-width:680px}
.band .tags{display:flex;gap:18px;flex-wrap:wrap;color:#8C897E;font-size:12.5px;margin:18px 0 26px}
.band .tags span{display:inline-flex;align-items:center;gap:6px}
.band .tags svg{width:14px;height:14px;stroke:var(--signal);fill:none;stroke-width:2}
.band-grid{position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle,rgba(248,244,234,.09) 1px,transparent 1.4px);
  background-size:22px 22px;
  mask-image:radial-gradient(ellipse 70% 70% at 50% 40%,#000 40%,transparent 85%);
  -webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 40%,#000 40%,transparent 85%)}
.band-scan{position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(0,0,0,.5) 0,rgba(0,0,0,.5) 1px,transparent 1px,transparent 3px);
  opacity:.05}
.band .stat-tile .v{text-shadow:0 0 16px rgba(143,187,168,.4)}

.frame{border:1px solid rgba(248,244,234,.16);border-radius:12px;overflow:hidden;background:#fff;position:relative;z-index:1}
.frame .bar{background:#242621;padding:8px 12px;display:flex;gap:6px;align-items:center}
.frame .bar i{width:10px;height:10px;border-radius:50%;background:#4A4C42;display:inline-block}
.frame iframe{width:100%;height:520px;border:0;display:block;background:var(--stone)}

/* ---------- stat tiles (rigor facts — the proof color, verdigris) ---------- */
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin:22px 0 4px;position:relative;z-index:1}
.stat-tile{background:var(--card);border:1px solid var(--line);border-top:2.5px solid var(--verify);border-radius:0 12px 12px 0;padding:18px 20px}
.stat-tile .v{font-family:var(--serif);font-size:29px;font-weight:600;color:var(--verify-d);letter-spacing:-.5px}
.stat-tile .l{font-size:12.5px;color:var(--muted);margin-top:4px;line-height:1.45}
.band .stat-tile{background:rgba(248,244,234,.06);border-color:rgba(248,244,234,.14);border-top-color:var(--signal)}
.band .stat-tile .v{color:var(--signal)}
.band .stat-tile .l{color:#AEACA1}

/* ---------- numbered stage sequence (methodology) ---------- */
.stages{display:flex;flex-direction:column;gap:0;margin-top:10px;position:relative;z-index:1}
.stage-row{display:grid;grid-template-columns:56px 1fr;gap:20px;padding:22px 0;border-top:1px solid var(--line)}
.stage-row:first-child{border-top:0}
.stage-badge{width:40px;height:40px;border-radius:10px;background:var(--card);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:14px;font-weight:700;color:var(--brand)}
.stage-row h3{font-size:17px;font-weight:600;margin-bottom:6px;font-family:"Inter",sans-serif}
.stage-row p{color:var(--muted);font-size:14px;max-width:64ch}
.stage-row .limit{margin-top:8px;font-size:12.5px;color:#7C7A6E;display:flex;gap:6px;align-items:flex-start}
.stage-row .limit svg{width:13px;height:13px;stroke:var(--verify);fill:none;stroke-width:2.2;flex:0 0 auto;margin-top:2px}

/* ---------- pipeline flow diagram — the hash-seal node is chromatically distinct (color = information) ---------- */
.pipeline-wrap{margin:30px 0 8px;position:relative;z-index:1}
.pipeline-wrap svg{width:100%;height:auto;display:block}
.pipeline-wrap .flow-line{fill:none;stroke:var(--brand);stroke-width:2.5;stroke-dasharray:1400;stroke-dashoffset:1400;transition:stroke-dashoffset 1.6s cubic-bezier(.4,0,.2,1)}
.pipeline-wrap.in-view .flow-line{stroke-dashoffset:0}
.pipeline-wrap .flow-dot{fill:var(--brand);opacity:0;transition:opacity .5s ease}
.pipeline-wrap.in-view .flow-dot{opacity:1;transition-delay:1.3s}
.pipeline-wrap .flow-node{fill:var(--card);stroke:var(--line-2);stroke-width:1.3}
.pipeline-wrap .flow-node.verify{fill:var(--verify);stroke:var(--verify-d)}
.pipeline-wrap .flow-dot.verify{fill:var(--verify)}
.pipeline-wrap .flow-label{font-family:"Inter",sans-serif;font-size:11px;font-weight:700;fill:var(--ink)}
.pipeline-wrap .flow-label.on-verify{fill:var(--card)}
.pipeline-wrap .flow-sub{font-family:"Inter",sans-serif;font-size:9.5px;fill:var(--muted)}
@media(prefers-reduced-motion:reduce){.pipeline-wrap .flow-line{stroke-dashoffset:0;transition:none}.pipeline-wrap .flow-dot{opacity:1;transition:none}}

/* ---------- verification / hash chip — verdigris ring, the "sealed" treatment ---------- */
.chip-hash{display:inline-flex;align-items:center;gap:7px;background:var(--card);border:1px solid var(--verify);
  border-radius:20px;padding:5px 8px 5px 12px;font-size:12px;color:var(--muted)}
.chip-hash .v{font-family:var(--mono);color:var(--ink);font-size:11.5px}
.chip-hash .check{width:16px;height:16px;border-radius:50%;background:var(--verify);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.chip-hash .check svg{width:9px;height:9px;stroke:var(--card);fill:none;stroke-width:3}
.chip-hash.on-dark{background:rgba(248,244,234,.06);border-color:var(--signal);color:#AEACA1}
.chip-hash.on-dark .v{color:#F8F4EA}
.chip-hash.on-dark .check{background:var(--signal)}
.chip-hash.on-dark .check svg{stroke:var(--dark)}

/* ---------- disclosure row (real, self-imposed constraints — the proof color) ---------- */
.disclosure-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;position:relative;z-index:1}
.disclosure-pill{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);
  border-radius:10px;padding:9px 14px;font-size:12.5px;color:var(--muted);flex:1 1 220px}
.disclosure-pill svg{width:15px;height:15px;stroke:var(--verify);fill:none;stroke-width:2.2;flex:0 0 auto}
.disclosure-pill b{color:var(--ink);font-weight:700}

/* ---------- roadmap items (explicitly NOT badge-styled — dashed outline, no fill) ---------- */
.roadmap{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.roadmap-item{display:flex;align-items:center;gap:12px;border:1px dashed var(--line-2);
  border-radius:10px;padding:12px 16px;font-size:13px;color:var(--muted)}
.roadmap-item svg{width:16px;height:16px;stroke:var(--verify);fill:none;stroke-width:2;flex:0 0 auto}
.roadmap-item .status{margin-left:auto;font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--verify-d)}

/* ---------- three-pillar layout (security page) ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.pillar{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}
.pillar .n{font-family:var(--mono);font-size:12px;color:var(--verify-d);letter-spacing:1px;font-weight:700;margin-bottom:8px}
.pillar h3{font-size:16px;margin-bottom:10px;font-family:"Inter",sans-serif}
.pillar ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.pillar li{font-size:13.5px;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.pillar li svg{width:14px;height:14px;stroke:var(--verify);fill:none;stroke-width:2.4;flex:0 0 auto;margin-top:3px}
.pillar li b{color:var(--ink);font-weight:600}

/* ---------- steps (compatibility) ---------- */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:8px}
.step{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.step h3{font-size:15px;font-weight:600;margin-bottom:6px;display:flex;gap:10px;align-items:center;font-family:"Inter",sans-serif}
.step .n{width:26px;height:26px;border-radius:7px;background:rgba(107,37,48,.09);color:var(--brand);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.step p{color:var(--muted);font-size:13.5px}
.callout{background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--verify);border-radius:0 10px 10px 0;padding:16px 20px;margin-top:22px;color:var(--muted);font-size:13.5px}
.tech{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tech span{font-size:12px;color:var(--muted);font-family:var(--mono);background:var(--card);border:1px solid var(--line);border-radius:20px;padding:5px 12px}

/* ---------- authority / citation strip ---------- */
.authority{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.authority span{font-size:12px;color:var(--verify-d);font-family:var(--mono);font-weight:600}

/* ---------- pull quote ---------- */
.pull{font-family:var(--serif);font-size:22px;font-style:italic;line-height:1.5;color:var(--ink);border-left:3px solid var(--brand);
  padding:4px 0 4px 22px;margin:26px 0;max-width:66ch}
.pull cite{display:block;font-family:"Inter",sans-serif;font-size:12.5px;font-style:normal;color:var(--muted);margin-top:10px;letter-spacing:.3px}

/* ---------- accordion (native details/summary) ---------- */
.accordion{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.accordion details{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.accordion details[open]{border-color:var(--line-2)}
.accordion summary{list-style:none;cursor:pointer;padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:14.5px;font-weight:600;color:var(--ink)}
.accordion summary::-webkit-details-marker{display:none}
.accordion summary .chev{width:18px;height:18px;flex:0 0 auto;transition:transform .2s ease}
.accordion summary .chev svg{width:100%;height:100%;stroke:var(--brand);fill:none;stroke-width:2.4}
.accordion details[open] summary .chev{transform:rotate(180deg)}
.accordion .a-body{padding:0 18px 18px;color:var(--muted);font-size:13.5px;line-height:1.65}
.accordion .a-body a{color:var(--brand);font-weight:600}
.faq-cat{margin:32px 0 14px;font-size:13px;letter-spacing:1.5px;text-transform:uppercase;color:var(--brand);font-weight:700}
.faq-cat:first-child{margin-top:6px}
.persona-strip{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 6px}
.persona-chip{font-size:12.5px;font-weight:500;padding:7px 14px;border-radius:20px;border:1px solid var(--line);background:var(--card);color:var(--muted);cursor:pointer}
.persona-chip:hover{color:var(--ink);border-color:var(--line-2)}
.persona-chip.active{background:var(--brand);border-color:var(--brand);color:var(--card)}
.faq-search{width:100%;font:inherit;font-size:14px;color:var(--ink);background:var(--card);border:1px solid var(--line);
  border-radius:10px;padding:12px 14px;margin:18px 0 6px}
.faq-search:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}

/* ---------- browser-chrome frame for screenshots ---------- */
.chrome-frame{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--card);box-shadow:0 12px 32px -14px rgba(28,30,25,.28)}
.chrome-frame .bar{background:var(--paper);border-bottom:1px solid var(--line);padding:9px 12px;display:flex;gap:6px}
.chrome-frame .bar i{width:9px;height:9px;border-radius:50%;background:var(--line-2);display:inline-block}
.chrome-frame img,.chrome-frame .shot{display:block;width:100%}

/* ---------- verification seal (conic-gradient ring, oxblood→verdigris sweep) ---------- */
@property --ang{syntax:'<angle>';inherits:false;initial-value:0deg}
.seal{position:relative;width:64px;height:64px;margin:0 auto 14px}
.seal::before{content:"";position:absolute;inset:-3px;border-radius:50%;
  background:conic-gradient(from var(--ang),var(--verify),var(--brand),var(--verify));
  animation:seal-spin 10s linear infinite;filter:blur(6px);opacity:.55}
.seal .ring{position:absolute;inset:0;border-radius:50%;background:var(--card);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center}
.seal .ring svg{width:26px;height:26px;stroke:var(--brand);fill:none;stroke-width:2}
@keyframes seal-spin{to{--ang:360deg}}
@media(prefers-reduced-motion:reduce){.seal::before{animation:none}}

/* ---------- about / contact / footer ---------- */
.about p{color:var(--muted);font-size:15px;max-width:760px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
form{display:flex;flex-direction:column;gap:12px}
label{font-size:12px;color:var(--muted);letter-spacing:.5px;display:flex;flex-direction:column;gap:5px}
input,textarea{font:inherit;font-size:14px;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:8px;padding:11px 12px}
input:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
textarea{resize:vertical;min-height:110px}
footer{background:var(--paper);border-top:1px solid var(--line);padding:34px 0}
footer .wrap{display:flex;flex-direction:column;gap:14px}
.foot-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.foot-links{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.foot-links a:hover{color:var(--brand)}
.disc{color:var(--muted);font-size:12px;line-height:1.7}

@media(max-width:820px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--stone);flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 16px;border-bottom:1px solid var(--line);max-height:calc(100vh - 64px);overflow-y:auto}
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-links a.current{border-bottom:1px solid var(--line);border-left:2px solid var(--brand);padding-left:10px}
  .nav-links .btn{margin:8px 0}
  .hamb{display:block}
  .hero{grid-template-columns:1fr;gap:24px}.hero h1{font-size:34px}
  .page-hero h1{font-size:29px}
  .three{grid-template-columns:1fr}
  .flagship{grid-template-columns:1fr;gap:24px}
  .steps{grid-template-columns:1fr}
  .pillars{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .stage-row{grid-template-columns:40px 1fr}
}