/* GlassHood — Architecture portal.
   The .pd-* product-detail system (fixed sizes/widths). Portal-only additions
   (scope-line, impl-grid, code, can-cannot, detail-block, page-title) follow the
   same type scale: body text 19px, headings 22px, logo 64px, text column
   max-width 800–880px. */
:root{
  --blue:#0c41cd; --navy:#000055; --orange:#e75a1e;
  --bg:#ffffff; --card:#f7f8fa; --text:#1a1a2e; --sub:#555555;
  --muted:#f0f1f4; --border:#e0e2e8; --max:1120px;
}
*{box-sizing:border-box}
html{overflow-y:scroll}
body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:"Lato",sans-serif;font-size:16px;line-height:1.6;font-weight:400;-webkit-font-smoothing:antialiased}
a{color:var(--navy);text-decoration:none}
a:hover{text-decoration:underline}
p{margin:0 0 1em}
.container{max-width:var(--max);margin:0 auto;padding:24px}

/* Button */
a.button{display:inline-block;padding:12px 20px;border-radius:12px;border:1px solid rgba(0,0,0,.12);
  background:transparent;color:var(--sub);font-weight:500;font-family:inherit;font-size:19px;cursor:pointer;
  transition:border-color .15s ease,color .15s ease,background .15s ease,box-shadow .15s ease}
a.button:hover{background:var(--orange);border-color:var(--orange);color:#fff;
  box-shadow:0 4px 16px rgba(0,0,0,.12);text-decoration:none}
a.button:focus{outline:none}
a.button:focus-visible{outline:2px solid var(--navy);outline-offset:2px}

/* Product-detail page system (.pd-*) */
.pd-page{color:var(--text)}
.pd-header{display:block;margin-bottom:16px}
.pd-logo-link{display:inline-block;text-decoration:none}
.pd-logo{height:64px;width:auto;object-fit:contain;display:block}
.pd-page-title{font-size:22px;font-weight:700;color:var(--navy);margin:14px 0 0;letter-spacing:-.01em}

.pd-hero{font-size:22px;font-weight:400;line-height:1.35;color:var(--text);max-width:none;margin:20px 0 14px;letter-spacing:-.005em}
.pd-hero .accent{color:var(--text)}
.scope-line{font-size:19px;line-height:1.55;color:var(--sub);max-width:none;margin:0 0 28px}

/* Architecture visual (in the Implementation reveal) */
.hero-diagram{margin:18px 0 24px}
.hero-diagram img{display:block;width:100%;height:auto;max-width:none;margin:0 auto}
.diagram-caption{font-size:19px;line-height:1.5;color:var(--sub);max-width:none;margin:12px auto 0;text-align:center}

/* Overview card grid — 2x2 (1-col mobile) */
.pd-cards{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:24px}
@media(min-width:768px){.pd-cards{grid-template-columns:repeat(2,1fr);gap:20px}}
.pd-card,.pd-card *{text-decoration:none!important}
.pd-card{position:relative;overflow:hidden;display:flex;gap:18px;padding:24px;background:#fff;
  border:1px solid var(--border);border-radius:12px;color:inherit;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.pd-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.06);border-color:var(--orange)}
.pd-card-icon{flex:0 0 auto;width:52px;height:52px;border-radius:12px;background:rgba(0,0,85,.06);
  color:var(--blue);display:flex;align-items:center;justify-content:center;transition:transform .18s ease}
.pd-card:hover .pd-card-icon{transform:scale(1.05)}
.pd-card-body{flex:1;min-width:0}
.pd-card-title{font-size:22px;font-weight:700;margin:0 0 10px;color:var(--text);letter-spacing:-.01em}
.pd-card-summary{font-size:19px;line-height:1.5;color:var(--sub);margin:0}
.pd-card-summary::after{content:"Click to read the section →";display:block;margin-top:14px;
  font-size:19px;font-weight:500;color:rgba(0,0,0,.25);transition:opacity .15s ease}
.pd-card:hover .pd-card-summary::after{opacity:0}
.pd-card-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .18s ease;pointer-events:none;border-radius:inherit}
.pd-card:hover .pd-card-overlay{opacity:1}
.pd-card-overlay-text{display:inline-flex;align-items:center;gap:8px;background:var(--orange);color:#fff;
  padding:10px 14px;border-radius:12px;font-size:19px;font-weight:500;box-shadow:0 4px 16px rgba(0,0,0,.12);white-space:nowrap}

/* Quiet live-view line */
.live-view-note{font-size:19px;line-height:1.55;color:var(--sub);max-width:none;margin:22px 0 0}
.arch-cta{margin:24px 0 0}

/* Progressive disclosure */
.pd-hidden-until-reveal{display:none}
.pd-page.revealed .pd-hidden-until-reveal{display:block;margin-top:44px}

/* Detail sections */
.pd-section{padding:28px 0;scroll-margin-top:24px}
.pd-section:first-of-type{padding-top:8px}
.pd-section h2{font-size:22px;font-weight:700;color:var(--blue);margin:0 0 18px;letter-spacing:-.01em}
.pd-section p{font-size:19px;line-height:1.55;color:var(--sub);max-width:none;margin:0 0 16px}

/* Lists */
ul.tight{margin:0 0 16px;padding-left:24px;max-width:none}
ul.tight li{font-size:19px;line-height:1.55;color:var(--sub);margin:8px 0}

/* In-reveal note */
.note{font-size:19px;line-height:1.55;color:var(--sub);max-width:none;margin:8px 0 16px;padding:16px 20px;
  background:var(--muted);border-radius:8px}

/* Code block (sanitized config) — monospace */
.code-label{font-size:19px;font-weight:700;color:var(--navy);margin:18px 0 6px}
pre.code{background:#f4f6fa;border-left:3px solid var(--blue);border-radius:4px;padding:18px 20px;
  font-size:16px;line-height:1.55;font-family:ui-monospace,"SF Mono",Menlo,Monaco,Consolas,monospace;
  color:#1a1a2e;overflow-x:auto;margin:8px 0;max-width:none;white-space:pre}

/* CAN / CANNOT threat model */
.can-cannot{display:grid;grid-template-columns:1fr;gap:14px;margin:10px 0 18px;max-width:none}
@media(min-width:720px){.can-cannot{grid-template-columns:1fr 1fr}}
.cc-col{padding:20px 22px;border-radius:8px;font-size:19px;line-height:1.55}
.cc-can{background:rgba(12,65,205,.06);border:1px solid rgba(12,65,205,.18)}
.cc-cannot{background:rgba(231,90,30,.06);border:1px solid rgba(231,90,30,.2)}
.cc-col h4{margin:0 0 10px;font-size:16px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.cc-can h4{color:var(--blue)}
.cc-cannot h4{color:var(--orange)}
.cc-col ul{margin:0;padding-left:22px}
.cc-col li{margin:7px 0;color:var(--text)}

/* Implementation-detail bindings grid */
.impl-grid{display:grid;grid-template-columns:1fr;gap:12px;margin:14px 0 18px;max-width:none}
@media(min-width:680px){.impl-grid{grid-template-columns:1fr 1fr}}
.impl-item{display:flex;gap:16px;padding:14px 18px;background:rgba(0,0,0,.025);border-radius:6px;font-size:19px;line-height:1.55}
.impl-item>strong{flex:0 0 130px;color:var(--navy)}

/* Collapsible "detail" block (identity mechanism) */
details.detail-block{margin:10px 0;max-width:none}
details.detail-block>summary{cursor:pointer;padding:6px 0;font-size:19px;font-weight:700;color:var(--navy);list-style:none}
details.detail-block>summary::-webkit-details-marker{display:none}
details.detail-block>summary::before{content:"\25B8\00a0";color:var(--navy)}
details.detail-block[open]>summary::before{content:"\25BE\00a0"}
details.detail-block>div{padding:4px 0 0}

footer{margin:48px 0 36px;padding-top:20px;border-top:1px solid var(--border);font-size:17px;line-height:1.55;color:var(--sub);max-width:none}

@media(max-width:768px){.container{padding:16px}.pd-logo{height:52px}}

/* --- Architecture-reference eyebrow + integrated diagrams (REQ-GHA-015 merge) --- */
.pd-eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;
  letter-spacing:.11em;text-transform:uppercase;color:var(--blue);margin:14px 0 0}
.pd-eyebrow::before{content:"";width:24px;height:2px;background:var(--blue);opacity:.55;display:inline-block}

/* Borderless diagrams. Overview spans the card width; detail scrolls on narrow screens. */
.arch-diagram{margin:6px 0 30px}
.arch-diagram--overview svg{display:block;width:100%;height:auto}
.arch-diagram--detail{overflow-x:auto;-webkit-overflow-scrolling:touch}
/* Zone-row detail uses uniform fixed-height boxes sized for the 1070px design width — below it
   the grid compresses and nowrap sublabels spill out of the 34px boxes (the TestRobin-documented
   failure mode). Pin the composition (scoped to .arch-flow, NOT >div, so the legend stays fluid)
   and let narrower viewports use the contained scroll above. */
.arch-diagram--detail .arch-flow{min-width:1070px}
/* detail diagram is now an HTML flexbox flow; small inline arrow svgs render at natural size */
.arch-diagram--detail svg{width:auto;height:auto;min-width:0}
.arch-detail-flow{max-width:880px;margin:0 auto}
.arch-legend{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:10px 18px;
  margin-top:10px;font-size:12px;color:var(--sub)}
.arch-legend span{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.arch-legend .ln{width:26px;height:0;border-top:1.8px solid #0c41cd;display:inline-block}
.arch-legend svg{overflow:visible}
.arch-legend .sw i{width:11px;height:11px;border-radius:3px;display:inline-block}
.arch-legend .bk{font-family:ui-monospace,monospace;font-size:9px;font-weight:700;padding:2px 6px;border-radius:8px}

/* ColdVault boxes — persistent gray CTA, hero-card hover parity (lift + shadow + orange border,
   constant 1px apparent border via non-scaling-stroke on the scaled SVG). :focus-visible mirrors
   :hover for keyboard parity. One text element per CTA: only color/fill transitions. */
.cv-link{cursor:pointer;text-decoration:none;transform-box:fill-box;transform-origin:center;transition:transform .18s ease,filter .18s ease}
.cv-link:hover,.cv-link:focus-visible{text-decoration:none;transform:translateY(-2px);filter:drop-shadow(0 6px 20px rgba(0,0,0,.06))}
.cv-link:focus-visible,.cv-html-link:focus-visible{outline:2px solid #e75a1e;outline-offset:2px}
.cv-link text{text-decoration:none}
.cv-link .cv-box{transition:stroke .15s ease}
.cv-link:hover .cv-box,.cv-link:focus-visible .cv-box{stroke:#e75a1e;stroke-width:1;vector-effect:non-scaling-stroke}
.cv-link .cv-hover-btn rect{opacity:0;transition:opacity .15s;fill:#e75a1e}
.cv-link:hover .cv-hover-btn rect,.cv-link:focus-visible .cv-hover-btn rect{opacity:1}
.cv-link .cv-cta{fill:#6e7582;transition:fill .15s}
.cv-link:hover .cv-cta,.cv-link:focus-visible .cv-cta{fill:#fff}
.cv-html-link{cursor:pointer;text-decoration:none;display:block;border-radius:16px;transition:transform .18s ease,box-shadow .18s ease}
.cv-html-link:hover,.cv-html-link:focus-visible{text-decoration:none;transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.06)}
.cv-html-link>div{transition:border-color .15s}
.cv-html-link:hover>div,.cv-html-link:focus-visible>div{border-color:#e75a1e}
.cv-cta-tab{position:absolute;right:18px;top:-11px;background:#fff;padding:0 9px}
/* Narrow viewports: the tab label and the CTA can't share the border line — drop the CTA into
   the zone flow as a right-aligned line instead of colliding with the truncated tab. */
@media(max-width:640px){.cv-cta-tab{position:static;display:block;background:transparent;padding:0;margin:-8px 0 12px;text-align:right}}
.cv-cta-html{color:#6e7582;position:relative;display:inline-block;z-index:1;transition:color .15s}
.cv-cta-html::before{content:"";position:absolute;inset:-3px -8px;background:#e75a1e;border-radius:6px;opacity:0;transition:opacity .15s;z-index:-1}
.cv-html-link:hover .cv-cta-html,.cv-html-link:focus-visible .cv-cta-html{color:#fff}
.cv-html-link:hover .cv-cta-html::before,.cv-html-link:focus-visible .cv-cta-html::before{opacity:1}