/* K12 Operating & Governance / OPCO — V4.5.3 internal-page migration — 30 Sep 2026 */
body.opco-v453-page{background:var(--white)}
.opco-v453-page .nav-group.advisory-nav .nav-parent:after{transform:scaleX(1)}
.opco-v453-page [id]{scroll-margin-top:104px}

.opco-hero{position:relative;overflow:hidden;padding:88px 0 54px;background:linear-gradient(90deg,#fff 0%,#fff 68%,#E6EDF2 68%,#E6EDF2 100%)}
.opco-hero-grid{display:grid;grid-template-columns:minmax(0,1.38fr) minmax(320px,.72fr);gap:86px;align-items:center}
.opco-hero-copy{max-width:880px}
.opco-hero h1{font-size:clamp(48px,5.25vw,74px);max-width:950px;margin-bottom:28px}
.opco-hero-lead{max-width:790px;font-size:18px;line-height:1.72;color:#526276;margin-bottom:34px}
.opco-hero .hero-actions{display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.control-map{position:relative;background:var(--navy);color:#fff;padding:28px 28px 20px;box-shadow:0 26px 70px rgba(11,29,54,.18)}
.control-map:before{content:"";position:absolute;inset:12px;border:1px solid rgba(255,255,255,.18);border-top:2px solid var(--red);pointer-events:none}
.control-map>*{position:relative;z-index:1}
.control-map-label{font:600 10.5px var(--sans);letter-spacing:.12em;text-transform:uppercase;color:#c8d1db;margin-bottom:14px}
.control-map h2{font:600 27px/1.08 var(--sans);letter-spacing:-.025em;color:#fff;margin:0 0 17px}
.control-map ol{list-style:none;margin:0;padding:0}
.control-map li{display:grid;grid-template-columns:38px 1fr;gap:0 12px;padding:13px 0;border-top:1px solid rgba(255,255,255,.12)}
.control-map li span{grid-row:1/3;font:600 10.5px var(--sans);color:#aebbc8;padding-top:3px}
.control-map li strong{font:600 13.5px var(--sans);color:#fff}
.control-map li small{font:400 12px/1.45 var(--body);color:#aebbc8;margin-top:3px}

.opco-section{padding:102px 0}
.opco-section.soft{background:var(--paper)}
.internal-heading{display:grid;grid-template-columns:.86fr 1fr;gap:90px;align-items:end;margin-bottom:54px}
.internal-heading-copy{max-width:660px;color:#5f6d7d}
.internal-heading-copy p:last-child{margin-bottom:0}
.internal-heading .section-lead{font-size:18px;line-height:1.65;color:#31465f}

.architecture-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #b9c3cc;border-left:1px solid #b9c3cc}
.architecture-grid article{position:relative;min-height:245px;padding:28px 24px;border-right:1px solid #b9c3cc;border-bottom:1px solid #b9c3cc;overflow:hidden}
.architecture-grid article:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:4px;background:var(--red);transition:.25s ease}
.architecture-grid article:hover:after{right:0}
.architecture-grid span{font:600 11px var(--sans);letter-spacing:.09em;color:var(--red-dark)}
.architecture-grid h3{font-size:25px;margin:42px 0 12px}
.architecture-grid p{font-size:13.5px;line-height:1.67;color:#5e6d80;margin:0}

.pillars-band{padding:90px 0;background:var(--navy);color:#fff}
.pillars-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:78px;align-items:start}
.pillars-intro h2{color:#fff;font-size:clamp(40px,4.2vw,58px);margin-bottom:18px}
.pillars-intro>p:not(.eyebrow){color:#acbac8;max-width:470px}
.pillar-list{border-top:1px solid rgba(255,255,255,.18)}
.pillar-list article{display:grid;grid-template-columns:55px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid rgba(255,255,255,.16)}
.pillar-list article>span{font:600 11px var(--sans);letter-spacing:.08em;color:#c7d1db;padding-top:5px}
.pillar-list h3{font:600 18px/1.3 var(--sans);color:#fff;margin:0 0 7px}
.pillar-list p{font-size:13.5px;line-height:1.65;color:#aebbc8;margin:0}

.trigger-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.trigger-grid article{position:relative;background:#fff;border:1px solid #d5dce3;padding:30px 29px 31px;min-height:235px;overflow:hidden}
.trigger-grid article:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:4px;background:var(--red);transition:.25s ease}
.trigger-grid article:hover:after{right:0}
.trigger-grid span{font:600 10.5px var(--sans);letter-spacing:.11em;text-transform:uppercase;color:var(--red-dark)}
.trigger-grid h3{font-size:27px;margin:30px 0 12px}
.trigger-grid p{font-size:13.5px;line-height:1.68;color:#5d6c7f;margin:0}

.operating-rhythm{padding:88px 0;background:var(--blue);color:#fff}
.rhythm-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:78px;align-items:start}
.rhythm-grid h2{color:#fff;font-size:clamp(40px,4.2vw,58px);margin-bottom:18px}
.rhythm-grid>div:first-child>p:not(.eyebrow){color:#c0ccd7;max-width:480px}
.rhythm-steps{border-top:1px solid rgba(255,255,255,.2)}
.rhythm-steps article{display:grid;grid-template-columns:52px minmax(180px,.7fr) 1.3fr;gap:18px;padding:21px 0;border-bottom:1px solid rgba(255,255,255,.16)}
.rhythm-steps span{font:600 10.5px var(--sans);color:#cfdae4;padding-top:3px}
.rhythm-steps strong{font:600 14px/1.45 var(--sans);color:#fff}
.rhythm-steps p{margin:0;font-size:13px;line-height:1.6;color:#c0ccd7}

.support-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:78px;align-items:start}
.support-layout>div:first-child>p:not(.eyebrow){color:#617083;max-width:470px}
.support-cards{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #c4cdd6;border-left:1px solid #c4cdd6}
.support-cards article{min-height:220px;padding:25px 23px;border-right:1px solid #c4cdd6;border-bottom:1px solid #c4cdd6;position:relative;overflow:hidden}
.support-cards article:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:4px;background:var(--red);transition:.25s ease}
.support-cards article:hover:after{right:0}
.support-cards span{font:600 10.5px var(--sans);color:var(--red-dark)}
.support-cards h3{font-size:24px;margin:32px 0 11px}
.support-cards p{font-size:13px;line-height:1.65;color:#5d6c7f;margin:0}

.opco-v453-page .contact-section{border-top:1px solid #e2e6eb}

@media (max-width:1080px){
  .opco-hero-grid{gap:46px;grid-template-columns:1.2fr .8fr}
  .internal-heading,.pillars-layout,.rhythm-grid,.support-layout{gap:50px}
  .architecture-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .opco-hero{padding:66px 0 42px;background:linear-gradient(180deg,#fff 0%,#fff 73%,#E6EDF2 73%,#E6EDF2 100%)}
  .opco-hero-grid,.internal-heading,.pillars-layout,.rhythm-grid,.support-layout{grid-template-columns:1fr;gap:34px}
  .opco-hero h1{font-size:clamp(46px,13vw,64px)}
  .opco-hero-lead{font-size:16px}
  .opco-section{padding:78px 0}
  .pillars-band,.operating-rhythm{padding:74px 0}
  .trigger-grid{grid-template-columns:1fr}
  .rhythm-steps article{grid-template-columns:48px 1fr;gap:9px 16px}
  .rhythm-steps p{grid-column:2}
}
@media (max-width:520px){
  .opco-hero .hero-actions{flex-direction:column;align-items:stretch}
  .opco-hero .hero-actions .btn{width:100%}
  .control-map{padding:24px 22px 16px}
  .architecture-grid,.support-cards{grid-template-columns:1fr}
  .architecture-grid article,.support-cards article{min-height:0}
  .pillar-list article{grid-template-columns:42px 1fr}
  .rhythm-steps article{grid-template-columns:38px 1fr}
}