/* Momentum website, light "clean" variant (v1) for side-by-side comparison on port 8081.
   Original dark site stays on port 8080. Accent: Momentum blue + orange; no purple. */
:root{
  --bg:#ffffff; --bg-soft:#f6f7f9; --panel:#ffffff; --text:#0f1722; --muted:#566172; --line:#e6e9ef;
  --blue:#0053f2; --blue-dark:#1247b2; --blue-soft:#eaf1ff; --orange:#ff7a1a; --orange-soft:#fff1e6;
  --green:#14935a; --green-soft:#e7f7ef; --ink:#0f1722; --max:1160px; --radius:20px;
  --shadow:0 1px 2px rgba(15,23,34,.04),0 8px 28px rgba(15,23,34,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
.page-glow{display:none}
.shell{width:min(var(--max),calc(100% - 48px));margin-inline:auto}
img{max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
h1,h2,h3{line-height:1.1;letter-spacing:-.025em;margin:0;color:var(--ink)}
h1{font-size:clamp(2.6rem,5.6vw,4.4rem);font-weight:800}
h1 span{color:var(--blue)}
h2{font-size:clamp(2rem,3.6vw,2.9rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700;letter-spacing:-.01em}
p{margin:0}
code{background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:.05em .4em;font-size:.9em}

/* header */
.site-header{display:flex;align-items:center;justify-content:space-between;padding:22px 0;position:sticky;top:0;z-index:10;background:rgba(255,255,255,.88);backdrop-filter:saturate(1.4) blur(12px);width:100%;padding-inline:max(24px,calc((100% - var(--max))/2));border-bottom:1px solid transparent}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:800;font-size:1.2rem;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand-logo{width:34px;height:34px;border-radius:9px}
.site-header nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.site-header nav a{color:var(--muted);font-weight:600;font-size:.95rem;padding:9px 14px;border-radius:999px}
.site-header nav a:hover{background:var(--bg-soft);color:var(--ink);text-decoration:none}
.site-header nav a.nav-cta{background:var(--ink);color:#fff;margin-left:8px}
.site-header nav a.nav-cta:hover{background:#243044}

/* buttons */
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:14px 26px;font-weight:700;font-size:1rem;border:1px solid transparent;transition:transform .12s,box-shadow .12s,background .12s}
.button:hover{text-decoration:none;transform:translateY(-1px)}
.button.primary{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(30,107,255,.28)}
.button.primary:hover{background:var(--blue-dark)}
.button.secondary{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow)}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding:72px 0 56px}
.pill{display:inline-block;background:var(--blue-soft);color:var(--blue-dark);font-weight:700;font-size:.85rem;border-radius:999px;padding:7px 14px;margin-bottom:22px}
.hero-lede{font-size:1.2rem;color:var(--muted);margin:24px 0 32px;max-width:34em}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.trust-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.trust-row span{font-size:.9rem;font-weight:600;color:var(--muted);padding-left:22px;position:relative}
.trust-row span:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.hero-product{background:var(--bg-soft);border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}
.logo-lockup{display:flex;align-items:center;gap:16px;margin-bottom:18px}
.hero-logo-clean{width:64px;height:64px;border-radius:16px}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-kicker{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--orange)}
.logo-text strong{font-size:1.4rem;letter-spacing:-.02em}
.logo-text small{color:var(--muted)}
.verification-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px}
.verification-titlebar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.verification-titlebar strong{display:block;font-size:1.1rem}
.eyebrow-small{display:block;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.status{font-size:.8rem;font-weight:700;border-radius:999px;padding:5px 12px}
.status.good{background:var(--green-soft);color:var(--green)}
.verify-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.verify-item{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:12px 14px;background:var(--bg-soft)}
.verify-item>span{font-weight:800;color:var(--blue);font-size:.85rem}
.verify-item strong{display:block;font-size:.95rem}
.verify-item small{color:var(--green);font-weight:600}
.verification-footer{margin-top:14px;font-size:.82rem;color:var(--muted);text-align:center}

/* credibility strip */
.credibility-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:8px 0 56px}
.credibility-strip div{background:var(--bg-soft);border-radius:var(--radius);padding:22px;border:1px solid var(--line)}
.credibility-strip strong{display:block;font-size:1.1rem}
.credibility-strip span{color:var(--muted);font-size:.92rem}

/* sections */
section.shell{padding:64px 0}
.section-kicker{font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--orange);margin-bottom:14px}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{margin-bottom:16px}
.workflow-intro{color:var(--muted);font-size:1.1rem}
.statement h2{max-width:20em}
.statement-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:28px;color:var(--muted);font-size:1.1rem}

/* workflow */
.workflow-caption{display:flex;gap:12px;align-items:center;margin-bottom:16px;color:var(--muted);font-weight:600}
.flow-label{display:inline-block;font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--blue-dark);background:var(--blue-soft);border-radius:999px;padding:4px 10px}
.workflow-map{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:start}
.workflow-path{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.workflow-path li{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 20px;box-shadow:var(--shadow)}
.step-index{font-weight:800;color:var(--blue);background:var(--blue-soft);border-radius:12px;padding:8px 11px;font-size:.9rem}
.workflow-path h3{margin-bottom:4px}
.workflow-path p{color:var(--muted);font-size:.95rem}
.step-tag{font-size:.78rem;font-weight:700;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:4px 11px}
.workflow-guardrails{background:var(--bg-soft);border:1px solid var(--line);border-radius:22px;padding:24px;display:grid;gap:16px}
.guardrail-title{display:flex;gap:10px;align-items:center}
.boundary-mark{color:var(--orange);font-size:1.4rem}
.guardrail p{color:var(--muted);font-size:.95rem;margin-top:6px}
.preview-boundary{background:var(--orange-soft);border-radius:16px;padding:16px 18px;font-size:.93rem}
.preview-boundary p{margin-top:8px;color:#5b4631}
.workflow-reference{margin-top:22px;border:1px solid var(--line);border-radius:18px;padding:6px 20px}
.workflow-reference summary{cursor:pointer;font-weight:700;padding:14px 0}
.workflow-table-wrap{overflow:auto;padding-bottom:16px}
table{width:100%;border-collapse:collapse;font-size:.95rem}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.06em}
tbody th{font-weight:700}

/* architecture */
.architecture-map{margin:0;background:var(--bg-soft);border:1px solid var(--line);border-radius:28px;padding:32px;display:grid;gap:14px}
.architecture-interfaces{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.architecture-interfaces span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-weight:700}
.architecture-interfaces .architecture-status{background:transparent;border-style:dashed;color:var(--muted);font-weight:600}
.architecture-connector{text-align:center;color:var(--muted);font-size:1.4rem}
.architecture-engine{display:flex;gap:18px;align-items:center;background:var(--ink);color:#fff;border-radius:22px;padding:22px 26px}
.architecture-engine h3{color:#fff;font-size:1.5rem}
.architecture-engine p{color:#c9d2e0}
.architecture-engine .flow-label{background:rgba(255,255,255,.14);color:#fff}
.architecture-engine img{border-radius:14px}
.architecture-pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.architecture-pillar{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;display:grid;gap:10px;align-content:start}
.architecture-pillar p{color:var(--muted);font-size:.95rem}
.architecture-pillar.future{border-style:dashed}
.architecture-feedback{display:flex;gap:14px;align-items:center;background:var(--blue-soft);border-radius:16px;padding:16px 20px}
.architecture-feedback>span{font-size:1.6rem;color:var(--blue)}
.architecture-feedback p{color:var(--muted);font-size:.93rem}
figcaption{font-size:.85rem;color:var(--muted)}
.workflow-documentation{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin-top:24px;background:var(--bg-soft);border:1px solid var(--line);border-radius:20px;padding:22px 26px}
.workflow-documentation p{color:var(--muted);font-size:.95rem}
.research-entry-links{display:flex;gap:10px;flex-wrap:wrap}

/* core */
.core-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.core-copy h2{margin-bottom:18px}
.core-copy p:last-child{color:var(--muted);font-size:1.1rem}
.core-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.core-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow);display:grid;gap:6px}
.core-card span{color:var(--muted);font-size:.93rem}

/* principles */
.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.principle-grid article{background:var(--bg-soft);border:1px solid var(--line);border-radius:22px;padding:26px;display:grid;gap:10px;align-content:start}
.principle-grid article>span{font-weight:800;color:var(--orange)}
.principle-grid p{color:var(--muted)}

/* quote */
.quote-band{background:var(--ink);color:#fff;padding:72px 0;margin:32px 0}
.quote-band .section-kicker{color:#ffb27a}
.quote-inner{max-width:880px}
blockquote{margin:0 0 20px;font-size:clamp(1.8rem,3.4vw,2.8rem);font-weight:800;letter-spacing:-.025em;line-height:1.15}
.quote-inner p:last-child{color:#c9d2e0;font-size:1.1rem}

/* availability */
.availability{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.availability-main h2{margin-bottom:16px}
.availability-main p:last-child{color:var(--muted);font-size:1.1rem}
.price-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:34px;box-shadow:0 12px 40px rgba(15,23,34,.10);display:grid;gap:10px}
.price-label{font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--orange)}
.price{font-size:4rem;font-weight:800;letter-spacing:-.04em;line-height:1}
.price-card p{color:var(--muted)}
.price-note{font-size:.85rem;color:var(--muted)}

/* faq */
.faq details{border:1px solid var(--line);border-radius:18px;padding:4px 22px;margin-bottom:12px;background:#fff}
.faq summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--blue);font-size:1.4rem;line-height:1}
.faq details[open] summary:after{content:"–"}
.faq details p{color:var(--muted);padding-bottom:18px}

/* footer */
footer.shell{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap;padding:40px 0 56px;border-top:1px solid var(--line);margin-top:24px}
footer p{color:var(--muted);margin-top:8px;font-size:.95rem}
.footer-right{display:flex;flex-direction:column;gap:4px;text-align:right;color:var(--muted);font-size:.9rem}

@media (max-width:900px){
  .hero,.workflow-map,.core-panel,.availability,.statement-grid{grid-template-columns:1fr}
  .credibility-strip,.architecture-pillars,.principle-grid{grid-template-columns:1fr 1fr}
  .site-header nav a:not(.nav-cta){display:none}
}
@media (max-width:560px){
  .shell{width:calc(100% - 32px)}
  .credibility-strip,.architecture-pillars,.principle-grid,.core-grid,.verify-grid{grid-template-columns:1fr}
  .workflow-path li{grid-template-columns:auto 1fr}
  .step-tag{display:none}
  .footer-right{text-align:left}
}

/* v1 additions */
.table-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:8px 20px;box-shadow:var(--shadow)}
.tag{display:inline-block;font-size:.8rem;font-weight:700;border-radius:999px;padding:4px 12px;white-space:nowrap}
.tag.ok{background:var(--green-soft);color:var(--green)}
.tag.warn{background:var(--orange-soft);color:#b35400}
.tag.plan{background:var(--bg-soft);color:var(--muted);border:1px solid var(--line)}
.fine{color:var(--muted);font-size:.9rem;margin:16px 4px 0;max-width:62em}
.lang-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}
.tick-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:10px}
.tick-list li{position:relative;padding-left:28px;color:var(--muted);font-size:1rem}
.tick-list li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.tick-list strong{color:var(--ink)}
@media (max-width:900px){.lang-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.lang-grid{grid-template-columns:1fr}}