/* AtlasBound public site — shared styles. System fonts only, no external assets. */
:root{
  --paper:#f7f3ea;--paper-2:#efe9dc;--paper-3:#e4dccb;
  --ink:#12191d;--ink-2:#0f171b;--ink-3:#182329;
  --text:#1c2529;--muted:#46535a;--rule:#cfc6b3;
  --teal:#0b5d57;--teal-deep:#08433f;--teal-bright:#6fe3cf;
  --amber:#8f5400;--amber-bright:#e3a857;
  --on-dark:#ece8df;--on-dark-muted:#b1bbbf;--dark-rule:#2b3d45;
  --max:1180px;
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--font);font-size:1.0625rem;line-height:1.6;overflow-wrap:break-word}
img,svg{max-width:100%}
a{color:var(--teal);text-underline-offset:3px}
a:hover{color:var(--teal-deep)}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:3px}
[id]{scroll-margin-top:5.5rem}
p{margin:0 0 1rem}
h1,h2,h3{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.02em;text-wrap:balance}
h1{font-size:clamp(2rem,4.6vw,3.5rem);line-height:1.06;letter-spacing:-.03em}
h2{font-size:clamp(1.6rem,3.4vw,2.35rem);line-height:1.12;margin-bottom:1rem}
h3{font-size:1.15rem;line-height:1.3;letter-spacing:-.01em;margin-bottom:.35rem}
code{font-family:var(--mono);font-size:.88em;overflow-wrap:anywhere}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:12px;top:-60px;background:var(--ink);color:#fff;padding:.6rem 1rem;border-radius:6px;z-index:100;text-decoration:none}
.skip:focus{top:12px;color:#fff}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,243,234,.96);border-bottom:1px solid var(--rule)}
.bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem 1rem;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:.55rem;color:var(--ink);font-weight:700;font-size:1.1rem;text-decoration:none;letter-spacing:-.01em}
.brand:hover{color:var(--ink)}
.site-nav ul{display:flex;flex-wrap:wrap;gap:.1rem}
.site-nav a{display:block;padding:.45rem .7rem;color:var(--text);text-decoration:none;border-radius:6px;font-size:.98rem}
.site-nav a:hover{background:var(--paper-2);color:var(--ink)}
.site-nav a[aria-current="page"]{color:var(--teal);font-weight:650;box-shadow:inset 0 -2px 0 var(--teal);border-radius:0}
.nav-toggle{display:none;font:inherit;font-size:.95rem;font-weight:600;color:var(--ink);background:transparent;border:1px solid var(--ink);border-radius:6px;padding:.4rem .8rem;cursor:pointer}
.nav-toggle[aria-expanded="true"]{background:var(--ink);color:var(--paper)}
@media (max-width:820px){
  .js .nav-toggle{display:inline-block}
  .site-nav{flex-basis:100%}
  .site-nav ul{flex-direction:column;padding:.25rem 0 .75rem}
  .site-nav a{padding:.65rem .5rem;border-bottom:1px solid var(--rule);border-radius:0}
  .site-nav a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--teal);padding-left:.8rem}
  .js .site-nav.is-collapsed{display:none}
}

/* Buttons and small elements */
.btn-row{display:flex;flex-wrap:wrap;gap:.75rem}
.btn{display:inline-block;padding:.8rem 1.25rem;border-radius:7px;font-weight:650;text-decoration:none;border:2px solid var(--teal);line-height:1.2}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-deep);border-color:var(--teal-deep);color:#fff}
.btn-ghost{background:transparent;color:var(--teal)}
.btn-ghost:hover{background:var(--paper-2);color:var(--teal-deep)}
.btn-light{background:var(--paper);color:var(--teal-deep);border-color:var(--paper)}
.btn-light:hover{background:#fff;color:var(--teal-deep)}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);font-weight:600;margin:0 0 .9rem}
.eyebrow.amber{color:var(--amber)}
.eyebrow-2{display:block;margin-top:.3rem;text-transform:none;letter-spacing:0;font-family:var(--font);font-size:.95rem;font-weight:500;color:var(--muted)}
.lead{font-size:1.15rem;color:var(--muted);max-width:58ch}
.status-line{display:flex;flex-wrap:wrap;gap:.4rem .9rem;align-items:center;font-size:.95rem;color:var(--muted);margin:1.25rem 0 0}
.dot{display:inline-block;width:.6rem;height:.6rem;border-radius:50%;background:var(--amber-bright);margin-right:.45rem;box-shadow:0 0 0 2px var(--paper),0 0 0 3px var(--amber)}
.tag{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;padding:.15rem .5rem;border:1px solid var(--teal);color:var(--teal);border-radius:99px;vertical-align:middle}
.tag.amber{border-color:var(--amber);color:var(--amber)}
.note{font-size:.92rem;color:var(--muted)}

/* Sections */
.section{padding:clamp(3rem,7vw,5.5rem) 0}
.tint{background:var(--paper-2);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.section-head{max-width:46rem;margin-bottom:2.25rem}
.section-head p{color:var(--muted)}
.split{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:2rem 4rem;align-items:start}
.split>*{min-width:0}
.measure{max-width:60ch}
@media (max-width:820px){.split{grid-template-columns:minmax(0,1fr)}}

/* Hero (home) with coordinate-grid motif */
.hero{padding:clamp(1.75rem,4vw,3rem) 0 clamp(2rem,4vw,3.25rem);border-bottom:1px solid var(--rule);
  background-image:linear-gradient(to right,rgba(11,93,87,.07) 1px,transparent 1px),linear-gradient(to bottom,rgba(11,93,87,.07) 1px,transparent 1px);
  background-size:48px 48px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:2rem 3rem;align-items:center}
.hero-grid>*{min-width:0}
.hero h1{font-size:clamp(2rem,4.4vw,3.5rem);max-width:12em}
.hero .lead{margin:1.1rem 0 1.4rem;font-size:1.1rem}
@media (max-width:960px){.hero-grid{grid-template-columns:minmax(0,1fr)}}

.page-hero{padding:clamp(2.25rem,5vw,4rem) 0 clamp(2rem,4vw,3rem);border-bottom:1px solid var(--rule);
  background-image:linear-gradient(to right,rgba(11,93,87,.06) 1px,transparent 1px),linear-gradient(to bottom,rgba(11,93,87,.06) 1px,transparent 1px);
  background-size:48px 48px}
.page-hero h1{max-width:18em}
.page-hero .lead{margin:1.1rem 0 0}
.page-hero .btn-row{margin-top:1.5rem}

/* Dark panels: text colours scoped explicitly */
.panel{background:var(--ink-2);color:var(--on-dark);border-radius:10px;border:1px solid var(--ink)}
.panel h2,.panel h3,.panel strong{color:#fff}
.panel p,.panel li,.panel dd,.panel dt{color:var(--on-dark)}
.panel .note,.panel .muted{color:var(--on-dark-muted)}
.panel a{color:var(--teal-bright)}
.panel a:hover{color:#b5f5ea}
.panel code{color:#cdf5ee}
.panel :focus-visible{outline-color:var(--teal-bright)}
.panel-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.25rem 1rem;padding:.7rem 1.1rem;border-bottom:1px solid var(--dark-rule);font-family:var(--mono);font-size:.75rem;letter-spacing:.05em;text-transform:uppercase;color:var(--on-dark-muted)}
.panel-foot{padding:.75rem 1.1rem;border-top:1px solid var(--dark-rule);font-size:.88rem;color:var(--on-dark-muted);margin:0}

/* Illustrative workflow list (hero) */
.stagelist{padding:1rem 1.1rem 1.1rem}
.stagelist li{position:relative;display:grid;grid-template-columns:2.25rem minmax(0,1fr);gap:0 .9rem;padding-bottom:1rem}
.stagelist li:last-child{padding-bottom:0}
.stagelist li::before{content:"";position:absolute;left:1.05rem;top:2.25rem;bottom:.15rem;width:2px;background:var(--dark-rule)}
.stagelist li:last-child::before{display:none}
.mk{display:grid;place-items:center;width:2.25rem;height:2.25rem;border-radius:50%;border:2px solid var(--teal-bright);color:var(--teal-bright);font-family:var(--mono);font-weight:700;font-size:.85rem}
.amber-mk{border-color:var(--amber-bright);color:var(--amber-bright);border-style:dashed}
.stagelist .lbl{display:block;font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-bright)}
.stagelist .amber-lbl{color:var(--amber-bright)}
.stagelist .txt{display:block;font-weight:600;font-size:1.02rem;line-height:1.35;color:#fff}
.stagelist .sub{display:block;font-size:.88rem;color:var(--on-dark-muted);margin-top:.1rem;line-height:1.4}

/* Problem list */
.fail-list li{display:grid;grid-template-columns:3.2rem minmax(0,1fr);gap:0 1rem;padding:1.15rem 0;border-top:1px solid var(--rule)}
.fail-list li:last-child{border-bottom:1px solid var(--rule)}
.fail-list .n{font-family:var(--mono);font-size:.9rem;color:var(--teal);padding-top:.2rem}
.fail-list p{margin:0;color:var(--muted)}

/* Connected loop */
.loop{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:s}
.loop li{position:relative;padding:1.25rem 1.25rem 1.4rem;background:var(--paper);border:1px solid var(--ink);margin-left:-1px}
.loop li:first-child{margin-left:0;border-radius:10px 0 0 10px}
.loop li:last-child{border-radius:0 10px 10px 0}
.loop li:not(:last-child)::after{content:"→";position:absolute;right:-.7rem;top:1.15rem;z-index:2;width:1.4rem;height:1.4rem;border-radius:50%;background:var(--teal);color:#fff;font-size:.85rem;line-height:1.4rem;text-align:center}
.loop .verb{display:block;font-size:1.5rem;font-weight:750;letter-spacing:-.02em;color:var(--ink);margin-bottom:.2rem}
.loop .pil{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--teal);margin-bottom:.6rem}
.loop p{margin:0;font-size:.97rem;color:var(--muted)}
.loop-return{margin:.75rem 0 0;padding:.6rem 1rem;border:1px dashed var(--teal);border-top:0;border-radius:0 0 10px 10px;font-size:.93rem;color:var(--muted);text-align:center}
@media (max-width:820px){
  .loop{grid-template-columns:minmax(0,1fr)}
  .loop li,.loop li:first-child,.loop li:last-child{margin:-1px 0 0;border-radius:0}
  .loop li:first-child{border-radius:10px 10px 0 0}
  .loop li:last-child{border-radius:0 0 10px 10px}
  .loop li:not(:last-child)::after{content:"↓";right:auto;left:1.25rem;top:auto;bottom:-.7rem}
  .loop-return{border-top:1px dashed var(--teal);border-radius:10px;margin-top:1.25rem}
}

/* Example panel columns (home) */
.chain{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.chain>div{padding:1.25rem 1.25rem 1.4rem;border-left:1px solid var(--dark-rule)}
.chain>div:first-child{border-left:0}
.chain h3{font-size:1.05rem}
.chain .kind{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-bright);margin-bottom:.5rem}
.chain .kind.amber{color:var(--amber-bright)}
.chain ul{margin:.6rem 0 0}
.chain li{position:relative;padding-left:1rem;font-size:.95rem;margin-bottom:.35rem}
.chain li::before{content:"";position:absolute;left:0;top:.65em;width:.4rem;height:2px;background:var(--teal-bright)}
.chain p{font-size:.97rem;margin:0}
@media (max-width:820px){
  .chain{grid-template-columns:minmax(0,1fr)}
  .chain>div{border-left:0;border-top:1px solid var(--dark-rule)}
  .chain>div:first-child{border-top:0}
}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem 3rem}
.two>*{min-width:0}
@media (max-width:820px){.two{grid-template-columns:minmax(0,1fr)}}

/* Definition lists */
.defs{margin:0}
.defs>div{padding:1rem 0;border-top:1px solid var(--rule)}
.defs>div:last-child{border-bottom:1px solid var(--rule)}
.defs dt{font-weight:700;color:var(--ink);margin-bottom:.15rem}
.defs dd{margin:0;color:var(--muted)}
.kv{display:grid;grid-template-columns:minmax(6.5rem,.3fr) minmax(0,1fr);gap:.55rem 1rem;margin:.9rem 0}
.kv dt{font-family:var(--mono);font-size:.75rem;letter-spacing:.05em;text-transform:uppercase;color:var(--on-dark-muted);padding-top:.15rem}
.kv dd{margin:0}
@media (max-width:480px){.kv{grid-template-columns:minmax(0,1fr);gap:.1rem}.kv dd{margin-bottom:.6rem}}

/* Band (deep teal) */
.band{background:var(--teal-deep);color:#f3efe6}
.band h2,.band p,.band .eyebrow{color:#f3efe6}
.band .eyebrow{color:#9ff0e0}
.band a:not(.btn){color:#fff}
.band :focus-visible{outline-color:#fff}
.band-inner{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:2rem 3rem;align-items:center;padding:clamp(2.5rem,6vw,4rem) 0}
.band-inner>*{min-width:0}
.band h2{margin-bottom:.75rem}
.band p{margin-bottom:.75rem;max-width:56ch}
@media (max-width:820px){.band-inner{grid-template-columns:minmax(0,1fr)}}

/* Product pillars */
.pillars li{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.3fr);gap:1rem 3rem;padding:1.75rem 0;border-top:1px solid var(--ink)}
.pillars li:last-child{border-bottom:1px solid var(--ink)}
.pillars li>*{min-width:0}
.pillars .verb{display:block;font-family:var(--mono);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);margin-bottom:.3rem}
.pillars h3{font-size:1.4rem}
.pillars p{color:var(--muted);margin-bottom:.6rem}
.pillars .limit{font-size:.93rem;border-left:3px solid var(--amber);padding-left:.75rem;color:var(--text)}
.pillars .limit strong{color:var(--amber)}
@media (max-width:820px){.pillars li{grid-template-columns:minmax(0,1fr)}}

/* Compare (advisory vs gate) */
.compare>div{padding:1.4rem 1.4rem 1.5rem}
.compare h3{font-size:1.25rem}
.compare .kind{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-bright);margin-bottom:.5rem}
.compare .kind.amber{color:var(--amber-bright)}
.compare p{margin:0 0 .6rem}
.panel.two{gap:0}
.compare>div+div{border-left:1px solid var(--dark-rule)}
@media (max-width:820px){.compare>div+div{border-left:0;border-top:1px solid var(--dark-rule)}}

/* Workflow example */
.stage-btns{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.6rem;margin:0 0 1.25rem}
.stage-btn{font:inherit;text-align:left;cursor:pointer;background:var(--paper);color:var(--ink);border:2px solid var(--ink);border-radius:8px;padding:.7rem .85rem;line-height:1.3}
.stage-btn .s-n{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--teal)}
.stage-btn .s-l{display:block;font-weight:700;font-size:1.05rem}
.stage-btn:hover{background:var(--paper-2)}
.stage-btn[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.stage-btn[aria-pressed="true"] .s-n{color:var(--teal-bright)}
@media (max-width:820px){.stage-btns{grid-template-columns:minmax(0,1fr)}}
.ex-panel{padding:1.25rem 1.25rem 1.35rem}
.ex-panel+.ex-panel{border-top:1px solid var(--dark-rule)}
.ex-panel h3{display:flex;flex-wrap:wrap;gap:.3rem .7rem;align-items:center;font-size:1.25rem}
.ex-panel .tag{border-color:var(--teal-bright);color:var(--teal-bright)}
.ex-panel .tag.amber{border-color:var(--amber-bright);color:var(--amber-bright)}
.ex-concept{margin:.5rem 0 0;font-size:.93rem;color:var(--on-dark-muted)}
.no-js-note,.js-only{display:none}
.js .js-only{display:block}
.js .stage-btns.js-only{display:grid}
.js .no-js-note{display:none}
.no-js-note{padding:.7rem 1.1rem;margin:0;color:var(--on-dark-muted);border-bottom:1px solid var(--dark-rule)}
html:not(.js) .no-js-note{display:block}
.ex-status{padding:.6rem 1.1rem;margin:0;border-top:1px solid var(--dark-rule);font-size:.88rem;color:var(--on-dark-muted)}
.steps-after li{padding:1.1rem 0;border-top:1px solid var(--rule);display:grid;grid-template-columns:3.2rem minmax(0,1fr);gap:0 1rem}
.steps-after li:last-child{border-bottom:1px solid var(--rule)}
.steps-after .n{font-family:var(--mono);font-size:.9rem;color:var(--teal);padding-top:.2rem}
.steps-after p{margin:0;color:var(--muted)}

/* Development status board */
.board{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border:1px solid var(--ink);border-radius:10px;overflow:hidden;background:var(--paper)}
.board>div{padding:1.4rem 1.4rem 1.5rem;border-left:1px solid var(--ink)}
.board>div:first-child{border-left:0}
.board .tag{margin-bottom:.8rem}
.board h3{font-size:1.2rem;margin-bottom:.6rem}
.board li{position:relative;padding-left:1rem;margin-bottom:.55rem;color:var(--muted);font-size:.98rem}
.board li::before{content:"";position:absolute;left:0;top:.7em;width:.45rem;height:2px;background:var(--teal)}
.board .amb li::before{background:var(--amber)}
@media (max-width:820px){
  .board{grid-template-columns:minmax(0,1fr)}
  .board>div{border-left:0;border-top:1px solid var(--ink)}
  .board>div:first-child{border-top:0}
}
.faq details{border-top:1px solid var(--rule)}
.faq details:last-child{border-bottom:1px solid var(--rule)}
.faq summary{cursor:pointer;padding:1rem 0;font-weight:650;color:var(--ink);list-style-position:outside}
.faq .ans{padding:0 0 1rem;color:var(--muted);max-width:62ch}
.faq .ans p{margin:0}

/* About */
.profile{display:grid;gap:1.25rem}
.statement{font-size:clamp(1.3rem,2.6vw,1.8rem);line-height:1.25;font-weight:650;color:var(--ink);max-width:28ch;margin:0}
.contact-box{padding:1.5rem}
.contact-box p{margin:0 0 .75rem}
.mail{font-size:clamp(1.1rem,3.5vw,1.5rem);font-weight:700;overflow-wrap:anywhere}

/* Footer */
.site-footer{background:var(--ink);color:var(--on-dark);padding:2.5rem 0 1.75rem}
.site-footer p,.site-footer li{color:var(--on-dark)}
.site-footer strong{color:#fff}
.site-footer a{color:var(--teal-bright)}
.site-footer a:hover{color:#b5f5ea}
.site-footer :focus-visible{outline-color:var(--teal-bright)}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:1.5rem 3rem}
.foot-grid>*{min-width:0}
.foot-grid h2{font-size:.78rem;font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--on-dark-muted);margin-bottom:.6rem}
.foot-grid ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.2rem 1rem}
.foot-grid p{font-size:.95rem;margin-bottom:.5rem}
.site-footer .foot-base{border-top:1px solid var(--dark-rule);margin:1.5rem 0 0;padding-top:1rem;font-size:.88rem;color:var(--on-dark-muted)}
@media (max-width:620px){.foot-grid{grid-template-columns:minmax(0,1fr)}}

/* Evidence-grounded problem map: editorial rows, responsive reading order. */
.problem-map article{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr) minmax(0,.9fr);gap:1rem 2rem;padding:1.6rem 0;border-top:1px solid var(--rule)}
.problem-map article:last-child{border-bottom:1px solid var(--rule)}
.problem-map article>div{min-width:0}
.problem-num{display:block;font-family:var(--mono);font-size:.75rem;letter-spacing:.04em;text-transform:uppercase;color:var(--teal);margin-bottom:.65rem}
.problem-map h3{font-size:1.22rem;line-height:1.3}
.problem-map h4{font-size:.72rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:.06em;margin:0 0 .5rem;color:var(--teal)}
.problem-map p{margin:0;color:var(--muted);font-size:1rem}
.problem-scope{margin-top:1rem}
.pipeline-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.pipeline-flow li{padding:1.35rem;border-left:1px solid var(--dark-rule)}
.pipeline-flow li:first-child{border-left:0}
.pipeline-flow .kind{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--teal-bright);margin-bottom:.65rem}
.pipeline-flow p{font-size:.97rem;margin:0}
@media(max-width:820px){.problem-map article{grid-template-columns:minmax(0,1fr);gap:1rem}.pipeline-flow{grid-template-columns:minmax(0,1fr)}.pipeline-flow li{border-left:0;border-top:1px solid var(--dark-rule)}.pipeline-flow li:first-child{border-top:0}}