:root{
  --stk-blue:#00A0E3;
  --stk-charcoal:#2B2A29;
  --stk-paper:#F5F3EF;
  --stk-ink:#343331;
  --stk-line:rgba(43,42,41,.14);
  --stk-muted:#6D6B67;
  --stk-soft:#ECE9E3;
}
body{background:#fff;color:var(--stk-ink)}
.insights-main{padding-top:92px;overflow:hidden}
.insight-hero{padding:clamp(64px,8vw,112px) 0 52px;background:linear-gradient(180deg,#fff 0%,#f7f6f2 100%);border-bottom:1px solid var(--stk-line)}
.insight-hero .eyebrow,.insight-kicker{text-transform:uppercase;letter-spacing:.12em;font-weight:800;font-size:.78rem;color:#5f5d58}
.insight-hero h1{font-size:clamp(2.5rem,6vw,5.8rem);line-height:.98;letter-spacing:-.055em;font-weight:300;color:var(--stk-charcoal);max-width:1100px}
.insight-hero h1 strong{font-weight:800}
.insight-hero .lead{font-size:clamp(1.05rem,1.5vw,1.35rem);line-height:1.75;max-width:850px;color:#56544f}
.insight-meta-row{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:24px;color:#6d6b67;font-size:.9rem}
.insight-meta-row span{display:inline-flex;gap:7px;align-items:center}
.insight-breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.84rem;color:#797672;margin-bottom:28px}
.insight-breadcrumb a{color:#5c5954;text-decoration:none}
.insight-breadcrumb a:hover{color:var(--stk-blue)}
.insight-breadcrumb i{font-size:.65rem}
.insight-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:64px;padding:64px 0 96px}
.insight-article{min-width:0}
.insight-article p,.insight-article li{font-size:1.03rem;line-height:1.82;color:#484641}
.insight-article p{margin-bottom:1.25rem}
.insight-article h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.15;letter-spacing:-.035em;color:var(--stk-charcoal);margin:3.3rem 0 1.1rem;font-weight:700}
.insight-article h3{font-size:1.25rem;line-height:1.3;color:var(--stk-charcoal);margin:2rem 0 .8rem;font-weight:750}
.insight-article ul,.insight-article ol{padding-left:1.25rem;margin:0 0 1.4rem}
.insight-article li{margin-bottom:.5rem}
.insight-article strong{color:#2b2a29}
.insight-article code{background:#f1efea;color:#2b2a29;padding:.1em .35em;border-radius:5px}
.insight-toc{position:sticky;top:116px;align-self:start;border-left:3px solid var(--stk-blue);padding:18px 0 18px 20px}
.insight-toc strong{display:block;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px;color:#5e5b55}
.insight-toc a{display:block;text-decoration:none;color:#696660;padding:5px 0;font-size:.9rem;line-height:1.35}
.insight-toc a:hover{color:var(--stk-blue)}
.insight-callout{border:1px solid var(--stk-line);border-left:5px solid var(--stk-blue);padding:24px 26px;margin:30px 0;background:#fbfaf7;border-radius:0 12px 12px 0}
.insight-callout .callout-label{display:block;text-transform:uppercase;letter-spacing:.12em;font-size:.74rem;font-weight:800;color:#66635e;margin-bottom:7px}
.insight-callout p:last-child{margin-bottom:0}
.insight-example{background:var(--stk-charcoal);color:#fff;padding:32px;border-radius:18px;margin:32px 0}
.insight-example .example-label{font-size:.74rem;text-transform:uppercase;letter-spacing:.13em;color:#7fd7fb;font-weight:800}
.insight-example h3{color:#fff;margin-top:10px}
.insight-example p,.insight-example li{color:#e8e6e2}
.insight-example .formula{font-size:1.12rem;font-weight:700;background:rgba(255,255,255,.08);padding:16px 18px;border-radius:10px;margin-top:16px;font-variant-numeric:tabular-nums}
.source-box{margin:48px 0 10px;padding:26px;border:1px solid var(--stk-line);background:#f7f5f1;border-radius:14px}
.source-box-title{font-weight:800;color:#2b2a29;margin-bottom:12px}.source-box-title i{color:var(--stk-blue);margin-right:7px}
.source-box ul{margin-bottom:8px}.source-box li,.source-box p{font-size:.9rem;line-height:1.6;color:#65625d}
.insight-cta{display:flex;align-items:center;justify-content:space-between;gap:30px;background:#e9f7fd;border:1px solid rgba(0,160,227,.22);padding:34px;border-radius:18px;margin:54px 0 0}
.insight-cta h2{font-size:clamp(1.7rem,2.8vw,2.4rem);margin:0 0 10px}.insight-cta p{margin:0;max-width:750px}
.insight-related{padding:72px 0 90px;background:#f5f3ef;border-top:1px solid var(--stk-line)}
.insight-related h2{font-size:clamp(2rem,4vw,3.5rem);letter-spacing:-.045em;color:#2b2a29}
.insight-related-card{height:100%;display:flex;flex-direction:column;padding:26px;background:#fff;border:1px solid var(--stk-line);text-decoration:none;color:inherit;transition:.22s ease;border-radius:14px;box-shadow:0 9px 24px rgba(43,42,41,.04)}
.insight-related-card:hover{transform:translateY(-4px);border-color:rgba(0,160,227,.42);box-shadow:0 15px 36px rgba(43,42,41,.09)}
.insight-related-icon{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:#eaf7fc;color:var(--stk-blue);font-size:1.25rem;margin-bottom:18px}
.insight-related-meta{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;font-weight:800;color:#76736e;margin-bottom:9px}
.insight-related-card strong{font-size:1.16rem;line-height:1.35;color:#2b2a29;margin-bottom:10px}
.insight-related-card>span:not(.insight-related-icon):not(.insight-related-meta){font-size:.91rem;line-height:1.58;color:#696660}
.insight-related-card em{font-style:normal;font-size:.88rem;color:#1a86b7;margin-top:auto;padding-top:18px;font-weight:700}

/* Hub */
.insights-hub-hero{padding:clamp(70px,9vw,126px) 0 58px;background:#2b2a29;color:#fff}
.insights-hub-hero h1{font-size:clamp(3rem,7vw,6.6rem);line-height:.95;letter-spacing:-.06em;font-weight:300;max-width:1050px}
.insights-hub-hero h1 strong{font-weight:800;color:#fff}.insights-hub-hero p{font-size:clamp(1.05rem,1.5vw,1.3rem);line-height:1.7;color:#cbc8c3;max-width:790px}
.insights-filter{padding:26px 0;border-bottom:1px solid var(--stk-line);position:sticky;top:74px;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);z-index:15}
.insights-filter-inner{display:flex;flex-wrap:wrap;gap:9px}.insights-filter button{border:1px solid var(--stk-line);background:#fff;color:#4e4b46;border-radius:999px;padding:9px 14px;font-size:.85rem;font-weight:700}.insights-filter button.active,.insights-filter button:hover{background:#2b2a29;color:#fff;border-color:#2b2a29}
.insights-grid{padding:64px 0 100px}.insights-grid .insight-related-card{min-height:320px}.insights-grid .insight-related-icon{width:52px;height:52px;font-size:1.45rem}

/* Three questions */
.three-question-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:30px 0}.question-card{padding:24px;border-radius:14px;border:1px solid var(--stk-line);background:#fff}.question-card .num{font-size:2.2rem;font-weight:800;color:var(--stk-blue)}.question-card h3{margin:.35rem 0 .65rem}.question-card p{font-size:.92rem;line-height:1.6;margin:0}
.leadership-contrast{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}.contrast-col{padding:24px;border-radius:14px}.contrast-col.good{background:#eaf7fc;border:1px solid rgba(0,160,227,.22)}.contrast-col.risk{background:#f5f3ef;border:1px solid var(--stk-line)}

/* PDSA + DMAIC */
.pdsa-cycle{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:28px 0}.pdsa-step{padding:24px;border:1px solid var(--stk-line);border-top:5px solid var(--stk-blue);border-radius:13px;background:#fff}.pdsa-step b{font-size:2rem;color:#2b2a29}.pdsa-step span{display:block;font-weight:800;margin:.2rem 0 .5rem}.pdsa-step p{font-size:.9rem;line-height:1.55;margin:0}
.dmaic-roadmap{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:28px 0}.dmaic-stage{padding:18px 14px;background:#2b2a29;color:#fff;border-radius:10px;min-height:150px}.dmaic-stage b{display:block;color:#7fd7fb;font-size:.8rem;letter-spacing:.08em}.dmaic-stage strong{display:block;font-size:1.1rem;margin:6px 0}.dmaic-stage span{font-size:.82rem;line-height:1.45;color:#d9d6d1}

/* Roles */
.role-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:28px 0}.role-card{padding:25px;border:1px solid var(--stk-line);border-radius:14px;background:#fff}.role-card .role-level{font-size:.72rem;text-transform:uppercase;letter-spacing:.11em;font-weight:800;color:#6e6b66}.role-card h3{margin:.4rem 0 .7rem}.role-card p{font-size:.92rem;line-height:1.6}

/* Six hats */
.hats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:30px 0}.hat-card{position:relative;padding:22px 22px 22px 24px;border:1px solid var(--stk-line);border-radius:14px;background:#fff;overflow:hidden}.hat-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:7px;background:var(--hat)}.hat-dot{width:38px;height:28px;border-radius:50% 50% 40% 40%;background:var(--hat);border:1px solid rgba(0,0,0,.18);margin-bottom:12px}.hat-card h3{margin:.1rem 0 .55rem}.hat-card p{font-size:.9rem;line-height:1.55;margin:0}.hat-white{--hat:#f7f7f4}.hat-red{--hat:#d6362d}.hat-black{--hat:#1f1f1f}.hat-yellow{--hat:#f1c21b}.hat-green{--hat:#3d9a49}.hat-blue{--hat:#3486d1}
.hat-white .hat-dot{box-shadow:inset 0 0 0 1px #c9c9c2}

/* Statistics */
.stat-compare{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0}.stat-card{padding:24px;border-radius:14px;border:1px solid var(--stk-line);background:#fff}.stat-symbol{font-size:1.8rem;font-weight:800;color:var(--stk-blue)}.stat-card h3{margin:.3rem 0 .7rem}.stat-card p{font-size:.9rem;line-height:1.55}.mini-data{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.mini-data span{padding:7px 10px;border-radius:8px;background:#f1efea;font-variant-numeric:tabular-nums;font-size:.88rem}

/* KPI */
.kpi-framework{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0}.kpi-panel{padding:26px;border:1px solid var(--stk-line);border-radius:14px}.smart-row{display:grid;grid-template-columns:130px 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--stk-line)}.smart-row:last-child{border-bottom:0}.smart-row b{color:#2b2a29}.kpi-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:26px 0}.kpi-flow div{padding:18px 14px;border-radius:10px;background:#f2f0eb}.kpi-flow b{display:block;color:#1d7ea8;font-size:.75rem;text-transform:uppercase;letter-spacing:.08em}.kpi-flow span{font-size:.86rem;line-height:1.45}

/* Sigma interactive */
.sigma-lab{margin:34px 0;border:1px solid var(--stk-line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 18px 50px rgba(43,42,41,.07)}
.sigma-lab-head{padding:28px;background:#2b2a29;color:#fff}.sigma-lab-head h3{color:#fff;margin:0 0 8px}.sigma-lab-head p{color:#d8d5d0;margin:0;font-size:.94rem}
.sigma-controls{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;padding:28px;border-bottom:1px solid var(--stk-line)}
.sigma-control-group label{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:#68655f;margin-bottom:9px}
.sigma-control-group input[type=range]{width:100%;accent-color:var(--stk-blue)}
.sigma-control-group input[type=number]{width:100%;border:1px solid #cfcac2;border-radius:9px;padding:12px 13px;font-variant-numeric:tabular-nums}
.sigma-presets{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}.sigma-presets button{border:1px solid var(--stk-line);background:#fff;border-radius:999px;padding:6px 11px;font-size:.8rem;font-weight:700}.sigma-presets button:hover{background:#2b2a29;color:#fff}
.sigma-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#dedad3}.sigma-metric{padding:22px;background:#fff}.sigma-metric span{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:#77736d;font-weight:800}.sigma-metric strong{display:block;font-size:clamp(1.35rem,2.4vw,2.1rem);color:#2b2a29;margin-top:5px;font-variant-numeric:tabular-nums}.sigma-metric small{color:#77736d}
.sigma-volume{padding:28px;background:#f7f5f1}.sigma-volume-row{display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:end}.sigma-volume-results{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}.sigma-volume-card{background:#fff;border:1px solid var(--stk-line);padding:18px;border-radius:10px}.sigma-volume-card b{display:block;font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;color:#77736d}.sigma-volume-card strong{display:block;font-size:1.4rem;font-variant-numeric:tabular-nums;margin-top:4px}
.sigma-table-wrap{overflow:auto;max-height:560px}.sigma-table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}.sigma-table th{position:sticky;top:0;background:#2b2a29;color:#fff;padding:12px 14px;font-size:.78rem;text-transform:uppercase;letter-spacing:.07em;z-index:2}.sigma-table td{padding:10px 14px;border-bottom:1px solid #ece9e3}.sigma-table tr{cursor:pointer}.sigma-table tbody tr:hover{background:#f2f9fc}.sigma-table tr.active{background:#e2f5fd}.sigma-table tr.active td:first-child{font-weight:800;color:#1685b2}
.sigma-note{padding:18px 28px;font-size:.84rem;color:#6f6b65;border-top:1px solid var(--stk-line)}

@media(max-width:991.98px){
  .insight-layout{grid-template-columns:1fr;gap:30px}.insight-toc{position:static;order:-1;border-left:0;border-top:3px solid var(--stk-blue);padding:18px 0}.three-question-grid,.pdsa-cycle,.dmaic-roadmap,.hats-grid,.stat-compare{grid-template-columns:1fr 1fr}.sigma-controls{grid-template-columns:1fr}.sigma-metrics{grid-template-columns:1fr 1fr}.insight-cta{align-items:flex-start;flex-direction:column}.insights-filter{top:69px}
}
@media(max-width:575.98px){
  .insight-hero{padding-top:54px}.three-question-grid,.leadership-contrast,.pdsa-cycle,.dmaic-roadmap,.role-grid,.hats-grid,.stat-compare,.kpi-framework,.kpi-flow{grid-template-columns:1fr}.sigma-metrics{grid-template-columns:1fr}.sigma-volume-row{grid-template-columns:1fr}.sigma-volume-results{grid-template-columns:1fr}.insight-example,.insight-callout,.source-box{padding:22px}.insight-layout{padding-top:42px}.insights-hub-hero{padding-top:72px}
}


/* Statistical interactive labs — v2.10.0 */
.stats-lab{margin:34px 0;border:1px solid var(--stk-line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 18px 50px rgba(43,42,41,.07)}
.stats-lab-head{padding:26px 28px;background:#2b2a29;color:#fff}.stats-lab-head h3{color:#fff;margin:0 0 7px}.stats-lab-head p{color:#d8d5d0;margin:0;font-size:.94rem}
.stats-lab-body,.stats-lab-split,.cap-grid{padding:26px 28px}.stats-lab label,.cap-grid label{display:block;font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;font-weight:800;color:#6e6a64}.stats-lab textarea,.stats-lab input,.cap-grid input{width:100%;margin-top:8px;border:1px solid #cbc7c0;border-radius:9px;padding:11px 12px;background:#fff;font-family:inherit;text-transform:none;letter-spacing:normal;font-weight:500;color:#2b2a29}.stats-lab textarea{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem;line-height:1.5}.stats-lab-split{display:grid;grid-template-columns:1.4fr .6fr;gap:22px;align-items:start}.stats-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#dedad3}.stats-metrics-5{grid-template-columns:repeat(5,1fr)}.stats-metrics>div{background:#fff;padding:20px}.stats-metrics span{display:block;font-size:.69rem;text-transform:uppercase;letter-spacing:.08em;color:#77736d;font-weight:800}.stats-metrics strong{display:block;margin-top:5px;font-size:1.35rem;font-variant-numeric:tabular-nums;color:#2b2a29}.stats-lab-note{padding:17px 28px;border-top:1px solid var(--stk-line);background:#f7f5f1;color:#6f6b65;font-size:.84rem}.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;align-items:end}.cap-grid .btn{height:46px}.formula+.formula{margin-top:10px}
@media(max-width:991.98px){.stats-metrics-5{grid-template-columns:repeat(3,1fr)}.cap-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:575.98px){.stats-lab-split,.cap-grid{grid-template-columns:1fr}.stats-metrics,.stats-metrics-5{grid-template-columns:1fr 1fr}.stats-lab-body,.stats-lab-split,.cap-grid{padding:22px}}