/* SovereigntyBox — shared design system (all 10 pages; homepage-only styles live in home.css) */
/* ============ TOKENS ============ */
:root, [data-theme="dark"]{
  color-scheme: dark;
  --bg:#0A0A0B; --bg-raise:#111113;
  --fg:#F5F2EA; --fg-dim:#C9C5BA; --fg-faint:#8E8B82;
  --hair:rgba(233,230,222,.34); --hair-soft:rgba(233,230,222,.16);
  --accent:#FF8000; --accent-ink:#0A0A0B;
  --sev-high:#FF5A1F; --sev-policy:#9FB4A4; --sev-econ:#8FA3B8;
  --band-bg:#E9E4D8; --band-fg:#100F0B; --band-dim:#403D36;
  --band-hair:rgba(20,19,15,.40); --band-hair-soft:rgba(20,19,15,.22);
  --f-rgb:233,230,222;
  --vig:rgba(10,10,11,.72);
}
[data-theme="light"]{
  color-scheme: light;
  --bg:#F0F0F0; --bg-raise:#F7F7F7;
  --fg:#100F0B; --fg-dim:#403D36; --fg-faint:#6E6B61;
  --hair:rgba(22,21,17,.36); --hair-soft:rgba(22,21,17,.18);
  --accent:#AE3505; --accent-ink:#FFFFFF;
  --sev-high:#AE3505; --sev-policy:#3F5D47; --sev-econ:#2F4A63;
  --band-bg:#141310; --band-fg:#F2EDE0; --band-dim:#C6C0B0;
  --band-hair:rgba(233,228,216,.40); --band-hair-soft:rgba(233,228,216,.22);
  --f-rgb:22,21,17;
  --vig:rgba(236,232,222,.78);
}

/* ============ BASE ============ */
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg);scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} }
body{
  background:transparent; color:var(--fg);
  font:400 19.2px/1.6 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
::selection{background:var(--accent);color:var(--accent-ink)}
.mono{font-family:'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.skip{position:fixed;top:-60px;left:16px;z-index:200;background:var(--fg);color:var(--bg);
  padding:10px 16px;font:500 12px 'IBM Plex Mono',monospace;letter-spacing:.1em;text-decoration:none;transition:top .2s}
.skip:focus{top:12px}

/* ============ BACKGROUND FIELD ============ */
#field{position:fixed;inset:0;width:100%;height:100%;z-index:0}
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(to bottom, transparent 55%, var(--vig) 96%),
    radial-gradient(130% 100% at 24% 18%, transparent 42%, var(--vig) 118%);
}
.page{position:relative;z-index:2}

/* ============ TYPE UTILITIES ============ */
.eyebrow{font:500 11px/1.5 'IBM Plex Mono',monospace;letter-spacing:.2em;text-transform:uppercase;color:var(--fg-dim)}
.sec-top{display:flex;align-items:baseline;gap:18px;border-top:2px solid var(--hair);padding-top:18px;margin-bottom:clamp(36px,5vw,64px)}
.console-shot{margin:clamp(28px,3.4vw,44px) 0 0;border:3px solid var(--fg);background:var(--bg-raise)}
.console-shot img{display:block;width:100%;height:auto}
.console-cap{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;border-top:3px solid var(--fg);padding:12px 16px;
  font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.12em;color:var(--fg-faint)}
.console-cap span:first-child{color:var(--accent)}
.sec-top .idx{font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.14em;color:var(--fg-faint)}
h1{font:600 clamp(46px,7.4vw,116px)/.95 'Archivo',sans-serif;letter-spacing:-.035em}
.hmark{color:var(--accent)}
.hbold{font-weight:800}
h2{font:600 clamp(34px,4.6vw,70px)/1.0 'Archivo',sans-serif;letter-spacing:-.03em}
.lead{font-size:clamp(20.5px,1.8vw,25px);line-height:1.55;color:var(--fg-dim);max-width:64ch}
.body-copy{font-size:clamp(18.5px,1.45vw,21.5px);line-height:1.65;color:var(--fg-dim);max-width:62ch}
.os-line{font:500 12px 'IBM Plex Mono',monospace;letter-spacing:.2em;color:var(--fg-dim);margin-bottom:14px}

/* ============ NAV ============ */
.nav{position:fixed;top:0;left:0;right:0;z-index:60;border-bottom:2px solid transparent;
  transition:background-color .3s ease,border-color .3s ease,filter .7s cubic-bezier(.2,.6,.2,1)}
.nav.scrolled{background:color-mix(in srgb, var(--bg) 84%, transparent);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom-color:var(--hair)}
.nav-inner{max-width:1720px;margin:0 auto;padding:0 clamp(20px,3.4vw,56px);height:72px;
  display:flex;align-items:center;gap:clamp(20px,3vw,48px)}
.wordmark{font:400 25px 'Archivo',sans-serif;letter-spacing:-.01em;text-decoration:none;color:var(--fg);white-space:nowrap}
.wordmark b{font-weight:700;text-decoration:underline solid var(--accent) 3px;text-underline-offset:5px}
.nav-links{display:flex;gap:clamp(16px,2.2vw,34px);margin-left:auto}
.nav-links a{font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-decoration:none;color:var(--fg-dim);
  padding:6px 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.nav-links a:hover{color:var(--fg);border-bottom-color:var(--fg)}
.nav-links a.cur{color:var(--fg);border-bottom-color:var(--accent)}
.nav-right{display:flex;align-items:center;gap:18px}
.sig-pill{display:none;align-items:center;gap:8px;font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.14em;
  color:var(--fg);text-decoration:none;border:2px solid var(--hair);padding:8px 12px}

.theme-btn{font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.16em;background:none;border:2px solid var(--hair);
  color:var(--fg-dim);padding:9px 14px;cursor:pointer;transition:color .2s,border-color .2s}
.theme-btn:hover{color:var(--fg);border-color:var(--fg)}
.nav-cta{font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-transform:uppercase;text-decoration:none;
  background:var(--accent);color:var(--accent-ink);border:2px solid var(--accent);padding:9px 16px;transition:background-color .2s,color .2s}
.nav-cta:hover{background:none;color:var(--accent)}
/* ============ MOBILE MENU ============ */
.menu-btn{display:none;background:none;border:none;color:var(--fg);cursor:pointer;
  padding:8px 4px;align-items:center}
.menu-btn .wafers{display:flex;flex-direction:column;gap:9px;width:38px}
.menu-btn .wafers span{display:block;height:3px;background:currentColor;transition:background-color .2s}
.menu-btn:hover .wafers span{background:var(--accent)}
html.menu-open .menu-btn .wafers span{background:var(--accent)}
.menu-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.menu-scrim{position:fixed;inset:0;z-index:80;background:color-mix(in srgb, var(--bg) 62%, transparent);
  opacity:0;pointer-events:none;transition:opacity .3s ease}
html.menu-open .menu-scrim{opacity:1;pointer-events:auto}
.menu-panel{position:fixed;top:0;right:0;bottom:0;z-index:90;width:min(360px,88vw);
  background:var(--bg-raise);border-left:2px solid var(--fg);
  transform:translateX(100%);transition:transform .35s cubic-bezier(.2,.6,.2,1);
  display:flex;flex-direction:column;padding:22px clamp(18px,4vw,30px) 30px}
html.menu-open .menu-panel{transform:none}
html.rm .menu-panel,html.rm .menu-scrim{transition:none}
html.menu-open{overflow:hidden}
.menu-head{display:flex;justify-content:space-between;align-items:center;
  padding-bottom:16px;border-bottom:2px solid var(--hair);
  font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.2em;color:var(--fg-faint);text-transform:uppercase}
.menu-x{background:none;border:2px solid var(--hair);color:var(--fg);
  font:500 12px/1 'IBM Plex Mono',monospace;padding:8px 12px;cursor:pointer;transition:border-color .2s,color .2s}
.menu-x:hover{border-color:var(--accent);color:var(--accent)}
.menu-links{list-style:none;margin-top:8px}
.menu-links a{display:flex;justify-content:space-between;align-items:baseline;gap:12px;text-decoration:none;
  font:600 clamp(24px,6vw,32px)/1 'Archivo',sans-serif;letter-spacing:-.02em;color:var(--fg);
  padding:20px 0;border-bottom:2px solid var(--hair-soft);transition:color .2s}
.menu-links a:hover{color:var(--accent)}
.menu-links a .mk{font:500 10px 'IBM Plex Mono',monospace;letter-spacing:.16em;color:var(--fg-faint)}
.menu-links a.cur{color:var(--accent)}
.menu-theme{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:22px;
  padding:16px 0;border-top:2px solid var(--hair);
  font:500 10.5px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--fg-faint)}
.menu-cta{margin-top:auto;padding-top:26px}
.menu-cta .btn{display:block;text-align:center}
.menu-foot{margin-top:18px;font:400 9.5px/1.7 'IBM Plex Mono',monospace;letter-spacing:.1em;color:var(--fg-faint)}

.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--fg-dim);flex:none}
.dot.live{background:var(--accent)}
html.anim .dot.live{animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}

/* ============ LAYOUT ============ */
.wrap{max-width:1720px;margin:0 auto;padding:0 clamp(20px,3.4vw,56px)}
.main-col{min-width:0}
section{padding:clamp(88px,12vh,150px) 0}
.hero{min-height:72svh;display:flex;flex-direction:column;justify-content:center;padding-top:120px;position:relative}
.hero .eyebrow{margin-bottom:clamp(24px,3vw,40px);max-width:72ch}
.hero h1{margin-bottom:clamp(28px,3.4vw,44px)}
.hero .lead{margin-bottom:clamp(32px,4vw,52px)}
.cta-row{display:flex;gap:16px;flex-wrap:wrap}
.btn{font:500 12px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-transform:uppercase;text-decoration:none;
  padding:16px 26px;border:2px solid var(--fg);color:var(--fg);transition:background-color .2s,color .2s,border-color .2s;display:inline-block;cursor:pointer;background:none}
.btn-primary{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:none;color:var(--accent)}
.btn-ghost{border-color:var(--hair);color:var(--fg-dim)}
.btn-ghost:hover{border-color:var(--fg);color:var(--fg)}
.crumb{display:inline-block;font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-decoration:none;
  color:var(--fg-dim);margin-bottom:26px;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.crumb:hover{color:var(--fg);border-bottom-color:var(--fg)}

/* ============ REVEALS ============ */
html.anim .reveal{opacity:0;transform:translateY(26px);
  transition:opacity .85s cubic-bezier(.2,.6,.2,1),transform .85s cubic-bezier(.2,.6,.2,1)}
html.anim .reveal.in{opacity:1;transform:none}
html.anim .reveal.d1{transition-delay:.09s}html.anim .reveal.d2{transition-delay:.18s}
html.anim .reveal.d3{transition-delay:.27s}html.anim .reveal.d4{transition-delay:.36s}

/* ============ PANELS ============ */
.panels{display:grid;grid-template-columns:1fr 1fr;gap:0;border:2px solid var(--hair)}
.panel{padding:clamp(24px,2.6vw,40px);display:flex;flex-direction:column;gap:18px}
.panel + .panel{border-left:2px solid var(--hair)}
.panel .p-tag{font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-faint)}
.panel h3{font:600 clamp(21px,1.9vw,28px)/1.15 'Archivo',sans-serif;letter-spacing:-.02em}
.panel p{font-size:18px;line-height:1.65;color:var(--fg-dim)}
.panel ul{list-style:none;margin-top:2px}
.panel li{font:400 12px/1.6 'IBM Plex Mono',monospace;color:var(--fg-dim);padding:8px 0;border-top:2px solid var(--hair-soft)}
.panel li:first-child{border-top:none}
.panel .p-foot{margin-top:auto;border-top:2px solid var(--hair);padding-top:14px;
  font:500 10.5px/1.6 'IBM Plex Mono',monospace;letter-spacing:.12em;color:var(--fg-dim)}
.panels.five{grid-template-columns:repeat(3,1fr)}
.panels.five .panel{border-left:none;border-top:2px solid var(--hair)}
.panels.five .panel:nth-child(3n+1){border-left:none}
.panels.five .panel:nth-child(-n+3){border-top:none}
.panels.five .panel:nth-child(3n+2),.panels.five .panel:nth-child(3n){border-left:2px solid var(--hair)}
.panel.headline{background:color-mix(in srgb, var(--fg) 5%, transparent)}
.panel.note-panel{background:color-mix(in srgb, var(--accent) 6%, transparent)}

/* ============ SPEC ROWS ============ */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(40px,4.5vw,80px);align-items:start}
.split h2{margin-bottom:24px}
.spec-list{margin-top:clamp(30px,3.4vw,48px);border-bottom:2px solid var(--hair)}
.spec{display:grid;grid-template-columns:150px 1fr;gap:16px;padding:13px 0;border-top:2px solid var(--hair);
  font:400 12.5px/1.5 'IBM Plex Mono',monospace}
.spec dt{color:var(--fg-faint);text-transform:uppercase;letter-spacing:.14em;font-size:10.5px;padding-top:2px}
.spec dd{color:var(--fg)}

/* ============ SCHEMATICS ============ */
.schem{width:100%;height:auto;color:var(--fg);display:block}
.schem .s-out{fill:none;stroke:currentColor;stroke-width:2.6}
.schem .s-thin{fill:none;stroke:currentColor;stroke-width:1.8;opacity:.6}
.schem .s-faint{fill:none;stroke:currentColor;stroke-width:1.4;opacity:.32}
.schem .s-fill{fill:currentColor;opacity:.85}
.schem .s-led{fill:var(--accent)}
.schem text{font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.14em;fill:var(--fg-dim)}
.schem-frame{border:2px solid var(--hair);padding:clamp(16px,2vw,32px);position:relative}
.schem-frame .sf-tag{position:absolute;top:12px;right:14px;font:500 9.5px 'IBM Plex Mono',monospace;
  letter-spacing:.16em;color:var(--fg-faint)}

/* ============ DIAGRAM: NODE FLOWS (D1/D5/D6) ============ */
.flow{display:flex;align-items:stretch;gap:0;padding-bottom:0}
.flow-node{position:relative;flex:1;border:2px solid var(--hair);padding:22px 16px;text-align:center;transition:border-color .25s,background-color .25s}
.flow-node:hover{border-color:var(--fg);background:var(--bg-raise)}
.flow-node.em{border-color:var(--fg);border-width:3px}
.flow-node .fn-k{font:500 10px 'IBM Plex Mono',monospace;letter-spacing:.18em;color:var(--fg-faint);display:block;margin-bottom:10px}
.flow-node .fn-t{font:600 15px/1.3 'Archivo',sans-serif;letter-spacing:.02em;text-transform:uppercase;display:block;margin-bottom:8px}
.flow-node .fn-d{font:400 10.5px/1.6 'IBM Plex Mono',monospace;color:var(--fg-dim);display:block}
.flow-link{width:clamp(20px,3vw,48px);align-self:center;height:2px;background:var(--hair);flex:none;position:relative}
.flow-link::after{content:"";position:absolute;right:-1px;top:-4px;border-left:8px solid var(--hair);
  border-top:5px solid transparent;border-bottom:5px solid transparent}
.flow-note{margin-top:14px;font:400 10px 'IBM Plex Mono',monospace;letter-spacing:.14em;color:var(--fg-faint)}

/* ============ LAYER STACK (D3) ============ */
.stack{display:flex;flex-direction:column;border:2px solid var(--band-hair)}
.layer{display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:clamp(18px,2vw,26px) clamp(16px,2vw,26px);border-top:2px solid var(--band-hair-soft);
  transition:background-color .25s}
.layer:first-child{border-top:none}
.layer:hover{background:color-mix(in srgb, var(--band-fg) 7%, transparent)}
.layer.em{background:color-mix(in srgb, var(--accent) 8%, transparent)}
.layer .k{font:500 12px 'IBM Plex Mono',monospace;letter-spacing:.16em;color:var(--band-fg)}
.layer .v{font:400 10.5px 'IBM Plex Mono',monospace;letter-spacing:.12em;color:var(--band-dim);text-align:right}
.stack-link{display:flex;align-items:center;gap:12px;padding:8px clamp(16px,2vw,26px);
  font:400 10px 'IBM Plex Mono',monospace;letter-spacing:.14em;color:var(--band-dim)}
.stack-link .arr{border-left:2px solid var(--band-dim);height:14px}
/* stack on non-band sections */
.stack.on-main{border-color:var(--hair)}
.stack.on-main .layer{border-top-color:var(--hair-soft)}
.stack.on-main .layer:hover{background:color-mix(in srgb, var(--fg) 5%, transparent)}
.stack.on-main .layer.em{background:color-mix(in srgb, var(--accent) 7%, transparent)}
.stack.on-main .layer .k{color:var(--fg)}
.stack.on-main .layer .v{color:var(--fg-faint)}
.stack.on-main .stack-link{color:var(--fg-faint)}
.stack.on-main .stack-link .arr{border-left-color:var(--fg-faint)}

/* ============ REPORT (D7) ============ */
.report{border:2px solid var(--hair);font:400 12px/1.55 'IBM Plex Mono',monospace;background:color-mix(in srgb, var(--bg) 55%, transparent)}
.rep-head{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;padding:16px 18px;border-bottom:2px solid var(--hair);
  letter-spacing:.1em;font-size:11px;color:var(--fg)}
.rep-head .specimen{margin-left:auto;border:2px solid var(--accent);color:var(--accent);padding:3px 9px;
  font-size:9.5px;letter-spacing:.16em}
.rep-sub{padding:10px 18px;border-bottom:2px solid var(--hair);color:var(--fg-faint);font-size:10px;letter-spacing:.12em}
.rep-row{display:grid;grid-template-columns:158px 1fr auto;gap:14px;align-items:center;
  padding:12px 18px;border-top:2px solid var(--hair-soft)}
.rep-row:first-of-type{border-top:none}
.rep-row .rk{color:var(--fg-faint);text-transform:uppercase;font-size:10px;letter-spacing:.12em}
.rep-row .rv{color:var(--fg-dim)}
.chip{border:2px solid var(--fg-dim);color:var(--fg);padding:4px 9px;font-size:9.5px;
  letter-spacing:.14em;text-transform:uppercase;white-space:nowrap}
.rep-foot{padding:12px 18px;border-top:2px solid var(--hair);color:var(--fg-faint);font-size:10px;letter-spacing:.1em}

/* ============ BAND ============ */
.band{background:var(--band-bg);color:var(--band-fg);padding-left:clamp(20px,2.6vw,44px);padding-right:clamp(20px,2.6vw,44px)}
.band .eyebrow{color:var(--band-dim)}
.band .sec-top{border-top-color:var(--band-hair)}
.band .sec-top .idx{color:var(--band-dim)}
.band .lead,.band .body-copy{color:var(--band-dim)}
.band .os-line{color:var(--band-dim)}
.band .spec-list{border-bottom-color:var(--band-hair)}
.band .spec{border-top-color:var(--band-hair)}
.band .spec dt{color:var(--band-dim)}
.band .spec dd{color:var(--band-fg)}
.band .btn-ghost{border-color:var(--band-hair);color:var(--band-dim)}
.band .btn-ghost:hover{border-color:var(--band-fg);color:var(--band-fg)}
.band .panels{border-color:var(--band-hair)}
.band .panel + .panel{border-left-color:var(--band-hair)}
.band .panel .p-tag{color:var(--band-dim)}
.band .panel p,.band .panel li{color:var(--band-dim)}
.band .panel li{border-top-color:var(--band-hair-soft)}
.band .panel .p-foot{border-top-color:var(--band-hair);color:var(--band-dim)}
.band .flow-node{border-color:var(--band-hair)}
.band .flow-node:hover{border-color:var(--band-fg);background:color-mix(in srgb, var(--band-fg) 6%, transparent)}
.band .flow-node.em{border-color:var(--band-fg)}
.band .flow-node .fn-k{color:var(--band-dim)}
.band .flow-node .fn-d{color:var(--band-dim)}
.band .flow-link,.band .flow-link::after{background:var(--band-hair)}
.band .flow-link::after{background:none;border-left-color:var(--band-hair)}
.band .flow-note{color:var(--band-dim)}
.band .schem{color:var(--band-fg)}
.band .schem text{fill:var(--band-dim)}
.band .schem-frame{border-color:var(--band-hair)}
.band .schem-frame .sf-tag{color:var(--band-dim)}
.band .fineprint{margin-top:clamp(36px,4vw,52px);font:400 11px/1.7 'IBM Plex Mono',monospace;
  letter-spacing:.04em;color:var(--band-dim);max-width:76ch;border-top:2px solid var(--band-hair);padding-top:18px}

/* ============ SKU CARDS ============ */
.sku-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0;border:2px solid var(--hair)}
.sku-card{border-left:2px solid var(--hair);padding:clamp(20px,2vw,30px);display:flex;flex-direction:column;gap:14px;
  text-decoration:none;transition:background-color .2s;min-height:300px}
.sku-card:first-child{border-left:none}
.sku-card:hover{background:var(--bg-raise)}
.sku-card:focus-visible{outline:3px solid var(--accent);outline-offset:-3px}
.sku-card .sk-tier{font:500 10px 'IBM Plex Mono',monospace;letter-spacing:.18em;color:var(--fg-faint)}
.sku-card h3{font:600 clamp(20px,1.8vw,26px)/1.1 'Archivo',sans-serif;letter-spacing:-.02em}
.sku-card .sk-accel{font:400 11.5px/1.6 'IBM Plex Mono',monospace;color:var(--fg-dim)}
.sku-card .sk-best{font-size:16px;line-height:1.6;color:var(--fg-dim)}
.sku-card .sk-price{margin-top:auto;border-top:2px solid var(--hair);padding-top:12px;
  font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.1em;color:var(--fg)}
.sku-card .sk-price span{display:block;font-size:9px;color:var(--fg-faint);letter-spacing:.14em;margin-top:4px}
.sku-foot{margin-top:18px;font:400 10.5px/1.7 'IBM Plex Mono',monospace;letter-spacing:.06em;color:var(--fg-faint)}
.sk-art{width:min(62%,150px);height:auto;color:var(--fg-faint);margin:4px 0 10px}
.sk-art .sk-led{fill:var(--accent);stroke:none}

/* ============ PERSPECTIVE CARDS ============ */
.persp-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:2px solid var(--band-hair)}
.persp-card{padding:clamp(24px,2.6vw,42px);border-left:2px solid var(--band-hair);display:flex;flex-direction:column;gap:16px}
.persp-card:first-child{border-left:none}
.persp-card .pk{font:500 10px 'IBM Plex Mono',monospace;letter-spacing:.2em;text-transform:uppercase;color:var(--band-dim)}
.persp-card h3{font:600 clamp(22px,2.2vw,32px)/1.12 'Archivo',sans-serif;letter-spacing:-.02em;color:var(--band-fg)}
.persp-card p{font-size:17.5px;line-height:1.65;color:var(--band-dim)}

/* ============ SIGNAL PAGE FEED ============ */
.feed-list{list-style:none;border-top:2px solid var(--hair)}
.feed-item{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:22px 0;border-bottom:2px solid var(--hair)}
.feed-item .fi-meta{display:flex;flex-direction:column;gap:8px;font:500 10.5px 'IBM Plex Mono',monospace;
  letter-spacing:.14em;color:var(--fg-faint)}
.feed-item .fi-meta .row{display:flex;align-items:center;gap:9px}
.feed-item .fi-meta .tag{border:1px solid var(--hair);padding:2px 8px;letter-spacing:.12em;display:inline-block;width:fit-content}
.feed-item .fi-head{font:600 clamp(17px,1.6vw,22px)/1.35 'Archivo',sans-serif;letter-spacing:-.01em;margin-bottom:8px}
.feed-item .fi-src{font:400 10.5px 'IBM Plex Mono',monospace;letter-spacing:.1em;color:var(--fg-faint)}
.dot.high{background:var(--sev-high)}.dot.policy{background:var(--sev-policy)}.dot.econ{background:var(--sev-econ)}

/* ============ SIGNAL RAIL + TICKER (mobile in-flow reuse) ============ */
.sig-list{list-style:none}
.sig-item{padding:13px 0;border-top:2px solid var(--hair-soft)}
.sig-item:first-child{border-top:none}
.sig-meta{display:flex;align-items:center;gap:9px;font:500 9.5px 'IBM Plex Mono',monospace;
  letter-spacing:.14em;color:var(--fg-faint);margin-bottom:7px}
.sig-meta .dot{width:6px;height:6px}
.sig-meta .tag{border:1px solid var(--hair);padding:1px 6px;letter-spacing:.12em}
.sig-head{font:500 12.5px/1.5 'Archivo',sans-serif;color:var(--fg);margin-bottom:5px}
.sig-src{font:400 9.5px 'IBM Plex Mono',monospace;letter-spacing:.1em;color:var(--fg-faint)}
.rail-head{display:flex;align-items:center;gap:10px;font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.18em}
.live-tag{color:var(--accent);border:2px solid var(--accent);padding:2px 7px;font-size:9px;letter-spacing:.16em}
.rail-clock{font:500 22px 'IBM Plex Mono',monospace;letter-spacing:.06em;color:var(--fg)}
.persp{border-top:2px solid var(--hair);padding-top:16px}
.persp .eyebrow{margin-bottom:12px}
.persp ul{list-style:none}
.persp li{display:flex;gap:12px;padding:9px 0;border-top:2px solid var(--hair-soft);align-items:baseline}
.persp .pk{font:500 9px 'IBM Plex Mono',monospace;letter-spacing:.14em;color:var(--fg-faint);text-transform:uppercase;flex:none;width:74px}
.persp .pt{font:500 12.5px/1.45 'Archivo',sans-serif;color:var(--fg)}

/* ============ FORM ============ */
.form{border:2px solid var(--hair);padding:clamp(22px,3vw,40px);max-width:860px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font:500 10.5px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--fg-faint)}
.field input,.field select,.field textarea{font:400 14px/1.5 'IBM Plex Mono',monospace;color:var(--fg);
  background:var(--bg-raise);border:2px solid var(--hair);padding:13px 14px;border-radius:0;-webkit-appearance:none;appearance:none}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);outline-offset:2px;border-color:var(--fg)}
.form .btn{margin-top:24px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.confirm{border:2px solid var(--accent);padding:clamp(24px,3vw,40px);max-width:860px}
.confirm h3{font:600 clamp(20px,2vw,28px)/1.15 'Archivo',sans-serif;margin-bottom:12px}
.confirm p{color:var(--fg-dim);font-size:18px;line-height:1.65}

/* ============ CONFIGURATOR ============ */
.config{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(36px,4vw,64px);align-items:start}
.cfg-panel{border:2px solid var(--hair);padding:clamp(20px,2.4vw,34px)}
.cfg-group{margin-bottom:26px}
.cfg-group > .cfg-label{font:500 10.5px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-transform:uppercase;
  color:var(--fg-faint);display:block;margin-bottom:12px}
.seg{display:flex;border:2px solid var(--hair)}
.seg button{flex:1;background:none;border:none;border-left:2px solid var(--hair);color:var(--fg-dim);
  font:500 10.5px/1.4 'IBM Plex Mono',monospace;letter-spacing:.1em;padding:13px 8px;cursor:pointer;text-transform:uppercase;transition:background-color .2s,color .2s}
.seg button:first-child{border-left:none}
.seg button:hover{color:var(--fg)}
.seg button.on{background:var(--fg);color:var(--bg)}
.seg button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
input[type="range"]{width:100%;accent-color:var(--accent);height:32px}
.cfg-range-val{font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.12em;color:var(--fg)}
.cfg-summary{border:2px solid var(--fg);padding:clamp(20px,2.4vw,34px);position:sticky;top:100px}
.cfg-summary .cs-line{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-top:2px solid var(--hair-soft);
  font:400 12px/1.5 'IBM Plex Mono',monospace}
.cfg-summary .cs-line:first-of-type{border-top:none}
.cfg-summary .cs-line .k{color:var(--fg-faint);letter-spacing:.12em;text-transform:uppercase;font-size:10px}
.cfg-summary .cs-line .v{color:var(--fg);text-align:right}
.cfg-summary .cs-price{margin-top:16px;border-top:2px solid var(--hair);padding-top:16px}
.cfg-summary .cs-price .big{font:600 clamp(24px,2.4vw,34px)/1 'Archivo',sans-serif;letter-spacing:-.02em}
.cfg-summary .cs-price .sub{font:400 9.5px 'IBM Plex Mono',monospace;letter-spacing:.12em;color:var(--fg-faint);margin-top:8px}
.cfg-disclaimer{margin-top:18px;font:400 10px/1.7 'IBM Plex Mono',monospace;letter-spacing:.06em;color:var(--fg-faint);
  border-top:2px solid var(--hair);padding-top:14px}
.cfg-summary .btn{margin-top:20px;width:100%;text-align:center}

/* ============ CONCIERGE ============ */
#concierge{position:fixed;right:18px;bottom:18px;z-index:70;width:min(400px,calc(100vw - 36px))}
#conc-toggle{width:100%;display:flex;align-items:center;gap:10px;justify-content:center;background:var(--bg-raise);
  color:var(--fg);border:2px solid var(--fg);font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.18em;
  padding:14px 16px;cursor:pointer;text-transform:uppercase;transition:background-color .2s,color .2s}
#conc-toggle:hover{background:var(--fg);color:var(--bg)}
#concierge.open .conc-panel{display:flex;flex-direction:column}
.conc-panel{display:none;border:2px solid var(--accent);border-bottom:none;
  background:color-mix(in srgb, var(--accent) 9%, var(--bg-raise));
  max-height:72svh;overflow:hidden;padding:18px 18px 14px;
  box-shadow:0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent), 0 18px 50px rgba(0,0,0,.45)}
#concierge.open #conc-toggle{border-color:var(--accent);color:var(--accent)}
#concierge.open #conc-toggle:hover{background:var(--accent);color:var(--accent-ink)}
.conc-head{display:flex;justify-content:space-between;align-items:center;gap:12px;
  font:500 10px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-transform:uppercase;
  color:var(--fg-dim);padding-bottom:12px;border-bottom:2px solid var(--accent);margin-bottom:12px}
.conc-head .ch-left{display:flex;align-items:center;gap:9px;color:var(--fg)}
.conc-head .ch-right{display:flex;align-items:center;gap:14px}
.conc-head .ch-note{letter-spacing:.08em;text-transform:none;color:var(--fg-faint)}
.conc-close{background:none;border:none;color:var(--fg-dim);font:500 10px 'IBM Plex Mono',monospace;
  letter-spacing:.14em;cursor:pointer;padding:4px 0;text-transform:uppercase;transition:color .2s}
.conc-close:hover{color:var(--accent)}
.conc-log{flex:1;min-height:90px;overflow-y:auto;display:flex;flex-direction:column;gap:12px;margin-bottom:14px}
.cmsg{max-width:88%;font:400 12.5px/1.6 'IBM Plex Mono',monospace}
.cmsg-bot .cm-k{font-size:9px;letter-spacing:.16em;color:var(--fg-faint);display:block;margin-bottom:5px}
.cmsg-bot .cm-t{border-left:3px solid var(--accent);padding:2px 0 2px 12px;color:var(--fg)}
.cmsg-user{align-self:flex-end;background:var(--fg);color:var(--bg);padding:9px 13px}
.conc-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.conc-chips[hidden]{display:none}
.conc-chips-toggle{background:none;border:2px solid var(--hair);color:var(--fg-faint);cursor:pointer;
  font:500 9.5px 'IBM Plex Mono',monospace;letter-spacing:.14em;text-transform:uppercase;
  padding:6px 10px;margin:-4px 0 10px;transition:color .2s,border-color .2s}
.conc-chips-toggle:hover{color:var(--fg);border-color:var(--fg)}
.conc-chip{background:none;border:2px solid var(--hair);color:var(--fg);font:400 11px/1.4 'IBM Plex Mono',monospace;
  padding:8px 12px;cursor:pointer;transition:border-color .2s,background-color .2s}
.conc-chip:hover{border-color:var(--fg);background:color-mix(in srgb, var(--fg) 6%, transparent)}
.conc-chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.conc-form{display:flex;border:2px solid var(--hair)}
.conc-form input{flex:1;min-width:0;background:none;border:none;color:var(--fg);
  font:400 12.5px 'IBM Plex Mono',monospace;padding:12px 13px}
.conc-form input:focus{outline:none}
.conc-form:focus-within{border-color:var(--fg)}
.conc-send{background:none;border:none;border-left:2px solid var(--hair);color:var(--accent);
  font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.14em;padding:0 16px;cursor:pointer;text-transform:uppercase}
.conc-send:hover{background:var(--accent);color:var(--accent-ink)}
.conc-rec{border:2px solid var(--fg);padding:14px;margin-top:6px}
.conc-rec-name{font:600 20px/1.1 'Archivo',sans-serif;letter-spacing:-.02em;margin-bottom:8px}
.conc-rec-best{font-size:12.5px;line-height:1.6;color:var(--fg-dim);margin-bottom:12px}
.conc-rec-price{font:500 9.5px/1.7 'IBM Plex Mono',monospace;letter-spacing:.1em;color:var(--accent);margin-bottom:14px}
.conc-hand{display:flex;flex-direction:column;gap:8px}
.conc-hand .btn{padding:11px 14px;font-size:10px;text-align:center}
.conc-restart{background:none;border:none;color:var(--fg-faint);font:400 10.5px 'IBM Plex Mono',monospace;
  letter-spacing:.12em;cursor:pointer;padding:10px 0 2px;text-align:left}
.conc-restart:hover{color:var(--fg)}

/* ============ GATEWAY ============ */
.page{transition:filter .7s cubic-bezier(.2,.6,.2,1)}
html.gated .page,html.gated .nav{filter:blur(7px) brightness(.4) saturate(.75);pointer-events:none}
#gateway{position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;
  padding:20px;background:color-mix(in srgb, var(--bg) 55%, transparent);
  opacity:0;transition:opacity .45s ease;pointer-events:none}
html.gated #gateway{opacity:1;pointer-events:auto}
#gateway.gone{display:none}
.gw-panel{width:min(620px,100%);background:var(--bg-raise);border:6px solid var(--fg);
  color:var(--fg);padding:0;max-height:calc(100svh - 28px);overflow-y:auto;
  transform:translateY(12px);transition:transform .45s cubic-bezier(.2,.6,.2,1);
  box-shadow:0 0 0 2px color-mix(in srgb, var(--accent) 55%, transparent),
             0 24px 80px rgba(0,0,0,.6)}
html.gated .gw-panel{transform:none}
html.rm .page,html.rm .nav,html.rm #gateway,html.rm .gw-panel{transition:none}
/* modal label bar — says what this is, offers dismissal */
.gw-bar{display:flex;justify-content:space-between;align-items:center;gap:14px;
  background:var(--accent);color:var(--accent-ink);
  padding:10px clamp(16px,2.4vw,26px);
  font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.2em;text-transform:uppercase}
.gw-bar .gw-bar-t{display:flex;align-items:center;gap:10px}
.gw-x{background:none;border:2px solid var(--accent-ink);color:var(--accent-ink);
  font:500 12px/1 'IBM Plex Mono',monospace;padding:6px 11px;cursor:pointer;
  letter-spacing:.1em;transition:background-color .2s,color .2s}
.gw-x:hover{background:var(--accent-ink);color:var(--accent)}
.gw-x:focus-visible{outline:2px solid var(--accent-ink);outline-offset:2px}
.gw-body{padding:clamp(22px,3vw,34px)}
.gw-top{display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding-bottom:16px;border-bottom:2px solid var(--hair);
  font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.18em;text-transform:uppercase}
.gw-top .gw-tag{color:var(--fg-faint)}
.gw-panel h2{font:600 clamp(22px,2.4vw,30px)/1.1 'Archivo',sans-serif;letter-spacing:-.02em;margin:20px 0 14px}
.gw-panel > p{font-size:14px;line-height:1.65;color:var(--fg-dim);margin-bottom:12px}
.gw-list{list-style:none;margin:14px 0 22px;border-top:2px solid var(--hair)}
.gw-list li{display:flex;gap:14px;padding:11px 0;border-bottom:2px solid var(--hair-soft);
  font:400 11.5px/1.55 'IBM Plex Mono',monospace;color:var(--fg-dim);letter-spacing:.02em}
.gw-list .gk{color:var(--fg-faint);text-transform:uppercase;letter-spacing:.12em;flex:none;width:96px;padding-top:1px}
.gw-btns{display:flex;gap:14px;flex-wrap:wrap}
.gw-btns .btn{flex:1;min-width:170px;text-align:center;cursor:pointer;font-size:13.2px;padding:18px 26px}
#gw-accept{background:#D62B0A;border-color:#D62B0A;color:#FFFFFF;font-weight:700}
#gw-accept:hover{background:#000000;border-color:#000000;color:#FFFFFF}
[data-theme="light"] #gw-accept:hover{background:#111111;border-color:#111111}
#gw-accept:focus-visible{outline-color:#FFFFFF}
#gw-decline{background:none}
.gw-fine{margin-top:18px;font:400 9.5px/1.7 'IBM Plex Mono',monospace;letter-spacing:.06em;color:var(--fg-faint)}

/* ============ FOOTER ============ */
footer{border-top:2px solid var(--hair);padding:clamp(48px,6vw,80px) 0 34px;position:relative;z-index:2;
  background:color-mix(in srgb, var(--bg) 88%, transparent)}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:clamp(24px,3vw,48px);margin-bottom:clamp(40px,5vw,64px)}
.foot-brand .wordmark{display:block;margin-bottom:18px}
.foot-brand p{font:400 12.5px/1.7 'IBM Plex Mono',monospace;color:var(--fg-dim);max-width:34ch}
.foot-col h4{font:500 10.5px 'IBM Plex Mono',monospace;letter-spacing:.18em;color:var(--fg-faint);
  text-transform:uppercase;margin-bottom:16px}
.foot-col ul{list-style:none}
.foot-col li{margin-bottom:9px}
.foot-col a{font:400 12.5px 'IBM Plex Mono',monospace;color:var(--fg-dim);text-decoration:none;transition:color .2s}
.foot-col a:hover{color:var(--fg)}
.foot-legal{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;border-top:2px solid var(--hair);
  padding-top:22px;font:400 10.5px 'IBM Plex Mono',monospace;letter-spacing:.1em;color:var(--fg-faint)}
.foot-legal a{color:var(--fg-faint);text-decoration:none}
.foot-legal a:hover{color:var(--fg)}

/* ============ RESPONSIVE ============ */
@media (max-width:1120px){
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  .nav-right{margin-left:auto}
  .nav-right > .theme-btn{display:none}
  .sig-pill{display:inline-flex}
  .config{grid-template-columns:1fr}
  .cfg-summary{position:static}
}
@media (max-width:900px){
  .panels,.panels.five{grid-template-columns:1fr}
  .panel + .panel{border-left:none;border-top:2px solid var(--hair)}
  .panels.five .panel{border-left:none !important;border-top:2px solid var(--hair) !important}
  .panels.five .panel:first-child{border-top:none !important}
  .persp-cards{grid-template-columns:1fr}
  .persp-card{border-left:none;border-top:2px solid var(--band-hair)}
  .persp-card:first-child{border-top:none}
  .split{grid-template-columns:1fr}
  .sku-grid{grid-template-columns:1fr}
  .sku-card{border-left:none;border-top:2px solid var(--hair);min-height:0}
  .sku-card:first-child{border-top:none}
  .foot-grid{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .flow{flex-direction:column}
  .flow-link{width:2px;height:30px;margin:0 auto}
  .flow-link::after{right:-4px;top:auto;bottom:-1px;border-left:5px solid transparent;border-right:5px solid transparent;
    border-top:8px solid var(--hair);border-bottom:none}
  .band .flow-link::after{border-top-color:var(--band-hair);border-left-color:transparent}
  .rep-row{grid-template-columns:1fr;gap:5px}
  .spec{grid-template-columns:1fr;gap:4px}
  .feed-item{grid-template-columns:1fr;gap:12px}
  .nav-cta{display:none}
  .foot-grid{grid-template-columns:1fr}
  /* segmented controls: wrap instead of overflowing */
  .seg{flex-wrap:wrap}
  .seg button{flex:1 1 44%;border-top:2px solid var(--hair)}
  .seg button:nth-child(-n+2){border-top:none}
  .seg button:nth-child(odd){border-left:none}
  /* clear the fixed concierge dock */
  body{padding-bottom:74px}
  /* iOS: inputs under 16px trigger focus zoom */
  .field input,.field select,.field textarea,.conc-form input{font-size:16px}
  /* gateway: keep the modal identity in view on short screens */
  #gateway{padding:8px}
  .gw-panel{border-width:4px}
  .gw-bar{padding:7px 12px;font-size:9.5px;letter-spacing:.14em}
  .gw-body{padding:14px}
  .gw-panel h2{margin:10px 0 8px}
  .gw-panel > .gw-body > p{margin-bottom:8px}
  .gw-top{padding-bottom:10px;margin-bottom:2px}
  .gw-list{margin:8px 0 12px}
  .gw-list li{padding:7px 0}
  .gw-btns .btn{padding:13px 18px}
  .gw-fine{margin-top:12px}
}
@media (prefers-reduced-motion: reduce){
  .dot.live{animation:none}
}