/* BHOC shared visual shell.
   This file owns the common platform chrome and reusable knowledge-page primitives.
   Application hubs may keep their own theme colors and content-specific layouts. */

.site-header{background:#fff;border-bottom:1px solid var(--line)}
.site-nav{max-width:1280px;margin:auto;min-height:64px;padding:9px 32px 8px;display:grid;grid-template-columns:auto minmax(0,1fr);gap:24px;align-items:start}
.brand{font-size:23px;font-weight:780;letter-spacing:-1px;text-decoration:none;color:var(--ink);padding-top:3px}
.brand span{color:var(--teal);font-size:11px;font-weight:650;letter-spacing:1.5px;margin-left:12px;text-transform:uppercase}
.nav-links{display:grid;grid-template-columns:repeat(7,max-content);gap:7px 20px;align-items:center;justify-content:end}
.nav-links a{font-size:13px;font-weight:600;text-decoration:none;color:var(--muted)}
.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--teal)}
.nav-network{grid-column:1/-1;justify-self:end;display:flex;align-items:center;justify-content:flex-end;gap:6px;flex-wrap:wrap}
.nav-network-label{display:inline-flex;align-items:center;margin:0 2px 0 7px;color:#7b8793;font-size:8px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;white-space:nowrap}.nav-network-label:first-child{margin-left:0}.nav-network-separator{width:1px;height:19px;margin:0 4px;background:var(--line)}
.nav-network-link{display:inline-flex;align-items:center;gap:6px;color:var(--navy);border:1px solid var(--line);border-radius:999px;padding:5px 9px;background:#fff;font-size:10.5px;font-weight:750;text-decoration:none;white-space:nowrap}
.nav-network-link:hover{color:var(--teal);border-color:var(--teal);background:var(--wash)}
.nav-network-knowledge{background:#f6fafb;border-color:#cddcdf}.nav-network-knowledge:hover{background:#eef7f6}
.nav-network-pending{color:#8390a0;background:#f5f7f9;cursor:default}.nav-network-pending small{margin-left:5px;font-size:8px;font-weight:500}.vet-wordmark{font-family:Georgia,"Times New Roman",serif;letter-spacing:-.03em}.vet-o{color:#f65c00}

.shell{max-width:1280px;margin:auto;padding:22px 32px 42px}

/* Main-platform / knowledge-page hero */
.knowledge-hero{position:relative;overflow:hidden;text-align:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px 32px 30px;margin-bottom:18px}
.knowledge-hero:before{content:"";position:absolute;inset:0 0 auto;height:6px;background:linear-gradient(90deg,#ff6400 0 33.3%,#aa2e3f 33.3% 66.6%,#096b65 66.6%)}
.knowledge-hero .eyebrow{margin-bottom:10px}
.knowledge-hero h1{max-width:980px;margin:0 auto;font-size:clamp(32px,4.2vw,54px);line-height:1.07;letter-spacing:-1.8px;font-weight:660}
.knowledge-hero>p{max-width:940px;margin:14px auto 0;color:var(--muted);font-size:15px;line-height:1.55}
.knowledge-hero>p strong{color:var(--ink);font-weight:700}
.knowledge-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:18px}

/* Reusable editorial shell components */
.shell-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:18px;margin:18px 0 26px}
.shell-card{padding:28px}
.shell-card h2{font-size:29px;line-height:1.2;letter-spacing:-.6px;margin:8px 0 12px}
.shell-card p{color:var(--muted);font-size:13px;line-height:1.65}
.shell-dark{background:#102f49;color:#fff;border-radius:14px;padding:28px}
.shell-dark .eyebrow{color:#91d4cf}
.shell-dark h2{font-size:28px;line-height:1.2;margin:9px 0 14px}
.shell-dark p{color:#dce8ec;font-size:13px;line-height:1.7}
.shell-dark a{color:#fff;font-size:12px;font-weight:700}

/* Dark editorial sections are used by Concepts & Hypotheses pages.
   The intelligence visual layer forces .section backgrounds to white, so these
   explicit overrides preserve the intended dark surface and readable contrast. */
.section.dark{background:#102f49!important;color:#fff!important;border-color:#102f49!important}
.section.dark h2,.section.dark h3,.section.dark strong{color:#fff!important}
.section.dark p,.section.dark li{color:#dce8ec!important}
.section.dark .eyebrow{color:#91d4cf!important}
.section.dark a{color:#fff}

/* Clinical applications subnavigation */
.clinical-subnav{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 16px;padding:9px;background:#f7fafb;border:1px solid var(--line);border-radius:12px}
.clinical-subnav a{display:inline-flex;align-items:center;gap:6px;font-size:10.5px;font-weight:750;text-decoration:none;padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink)}
.clinical-subnav a:hover{color:var(--teal);border-color:var(--teal)}
.clinical-subnav a[aria-current="page"]{background:#102f49;color:#fff;border-color:#102f49}
.clinical-subnav a.nav-gov{background:#eef5fb;color:#0b466e;border-color:#b6ccdd}
.clinical-subnav a.nav-gov:before{content:"GOV";display:inline-flex;align-items:center;padding:2px 5px;border-radius:999px;background:#0b466e;color:#fff;font-size:7px;font-weight:900;letter-spacing:.07em}
.clinical-subnav a.nav-gov:hover{background:#e4f0f8;color:#083a5a;border-color:#7fa6c1}
@media(max-width:680px){.clinical-subnav{padding:8px}.clinical-subnav a{font-size:10px;padding:7px 9px}}

.site-footer{max-width:1280px;margin:0 auto;padding:24px 32px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:12px}


@media(max-width:1120px){
  .nav-links{grid-template-columns:repeat(4,max-content);gap:7px 17px}
}
@media(max-width:950px){
  .site-nav,.shell{padding-left:22px;padding-right:22px}
  .brand span{display:none}
}
@media(max-width:850px){
  .shell-grid{grid-template-columns:1fr}
}
@media(max-width:680px){
  .site-nav{display:flex;align-items:flex-start;flex-direction:column;gap:9px;padding:14px 18px}
  .nav-links{display:flex;width:100%;gap:12px 16px;justify-content:flex-start}
  .nav-network{width:100%;justify-content:flex-start}
  .nav-network-label{margin-left:3px}.nav-network-label:first-child{margin-left:0}.nav-network-separator{display:none}
  .shell{padding:16px 16px 34px}
  .knowledge-hero{padding:30px 18px 26px}
  .knowledge-hero h1{letter-spacing:-1.2px}
  .shell-card,.shell-dark{padding:22px}
  .site-footer{flex-direction:column;padding:22px 18px;gap:8px}
}