/* TKSE-WEB-010C Knowledge Hub Structure
   Scope: blog/knowledge hub layout only. Does not change header/footer/lead form. */
:root{
  --khub-navy:#061A3A;
  --khub-navy-2:#031127;
  --khub-text:#071B3A;
  --khub-muted:#64748B;
  --khub-emerald:#009B63;
  --khub-emerald-dark:#007F52;
  --khub-mint:#EAF7F1;
  --khub-border:#E2E8F0;
  --khub-bg:#F8FAFC;
}
.tkse-khub{background:linear-gradient(180deg,#f8fafc 0%,#ffffff 42%,#f8fafc 100%);color:var(--khub-text);}
.tkse-khub .wrap{max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px;}
.khub-hero{position:relative;overflow:hidden;padding:136px 0 56px;background:radial-gradient(circle at 18% 15%,rgba(0,155,99,.22),transparent 30%),linear-gradient(135deg,#031127 0%,#061A3A 62%,#0B2A55 100%);color:#fff;}
.khub-hero:after{content:"";position:absolute;inset:auto -120px -220px auto;width:520px;height:520px;border-radius:50%;background:rgba(0,155,99,.14);filter:blur(4px)}
.khub-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:32px;align-items:center;}
.khub-kicker{display:inline-flex;gap:8px;align-items:center;padding:8px 13px;border:1px solid rgba(167,225,199,.34);background:rgba(234,247,241,.10);border-radius:999px;color:#A7E1C7;font-weight:800;font-size:12px;letter-spacing:.14em;text-transform:uppercase;}
.khub-hero h1{margin:18px 0 16px;font-size:clamp(38px,5.5vw,68px);line-height:1.02;letter-spacing:-.045em;color:#fff;}
.khub-hero p{max-width:760px;margin:0;color:rgba(255,255,255,.82);font-size:18px;line-height:1.72;}
.khub-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.khub-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 18px;font-weight:800;text-decoration:none;transition:.18s ease;border:1px solid transparent;}
.khub-btn.primary{background:var(--khub-emerald);color:#fff;box-shadow:0 16px 38px rgba(0,155,99,.22);}
.khub-btn.primary:hover{background:var(--khub-emerald-dark);transform:translateY(-1px)}
.khub-btn.secondary{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.22)}
.khub-btn.secondary:hover{background:rgba(255,255,255,.14)}
.khub-hero-card{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);box-shadow:0 28px 80px rgba(0,0,0,.22);border-radius:28px;padding:24px;backdrop-filter:blur(12px);}
.khub-hero-card h2{font-size:20px;margin:0 0 16px;color:#fff;}
.khub-points{display:grid;gap:12px;margin:0;padding:0;list-style:none;}
.khub-points li{display:flex;gap:10px;color:rgba(255,255,255,.82);font-size:14px;line-height:1.5;}
.khub-points li:before{content:"✓";display:grid;place-items:center;flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:rgba(0,155,99,.24);color:#A7E1C7;font-weight:900;}
.khub-section{padding:56px 0;}
.khub-section-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:24px;}
.khub-section-head h2{margin:0 0 8px;font-size:clamp(28px,3vw,42px);line-height:1.08;letter-spacing:-.035em;color:var(--khub-text);}
.khub-section-head p{margin:0;color:var(--khub-muted);font-size:16px;line-height:1.65;max-width:720px;}
.khub-category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.khub-category-card{display:grid;grid-template-columns:auto 1fr;gap:14px;padding:20px;border-radius:22px;background:#fff;border:1px solid var(--khub-border);text-decoration:none;color:var(--khub-text);box-shadow:0 12px 34px rgba(15,23,42,.055);transition:.18s ease;}
.khub-category-card:hover{transform:translateY(-2px);border-color:rgba(0,155,99,.34);box-shadow:0 18px 46px rgba(15,23,42,.08);background:linear-gradient(180deg,#fff,#fbfffd)}
.khub-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;background:var(--khub-mint);color:var(--khub-emerald);font-size:24px;font-weight:900;}
.khub-category-card h3{margin:0 0 6px;font-size:18px;line-height:1.25;color:var(--khub-text);}
.khub-category-card p{margin:0;color:var(--khub-muted);font-size:14px;line-height:1.55;}
.khub-arrow{display:inline-flex;margin-top:12px;color:var(--khub-emerald);font-weight:900;}
.khub-featured{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;align-items:stretch;}
.khub-feature-card{display:flex;flex-direction:column;min-height:100%;background:#fff;border:1px solid var(--khub-border);border-radius:26px;padding:24px;text-decoration:none;color:var(--khub-text);box-shadow:0 12px 34px rgba(15,23,42,.055);transition:.18s ease;}
.khub-feature-card:hover{transform:translateY(-2px);border-color:rgba(0,155,99,.34)}
.khub-feature-card.major{background:linear-gradient(145deg,#fff 0%,#f3fbf7 100%);}
.khub-tag{display:inline-flex;align-self:flex-start;border-radius:999px;background:var(--khub-mint);color:var(--khub-emerald-dark);padding:7px 10px;font-size:12px;font-weight:800;margin-bottom:16px;}
.khub-feature-card h3{margin:0 0 10px;font-size:clamp(22px,2.2vw,34px);line-height:1.13;letter-spacing:-.025em;}
.khub-feature-card p{margin:0;color:var(--khub-muted);line-height:1.65;}
.khub-feature-list{display:grid;gap:14px;}
.khub-feature-list .khub-feature-card h3{font-size:19px;}
.khub-plan-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;counter-reset:post;}
.khub-plan-item{position:relative;background:#fff;border:1px solid var(--khub-border);border-radius:20px;padding:18px;min-height:142px;}
.khub-plan-item:before{counter-increment:post;content:counter(post,decimal-leading-zero);display:inline-flex;margin-bottom:12px;color:var(--khub-emerald);font-weight:900;font-size:13px;}
.khub-plan-item h3{font-size:16px;line-height:1.35;margin:0 0 8px;}
.khub-plan-item p{font-size:13px;line-height:1.55;color:var(--khub-muted);margin:0;}
.khub-cta{padding:34px;border-radius:30px;background:linear-gradient(135deg,var(--khub-navy-2),var(--khub-navy));color:#fff;display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;box-shadow:0 24px 70px rgba(3,17,39,.18);}
.khub-cta h2{margin:0 0 8px;color:#fff;font-size:clamp(24px,3vw,38px);}
.khub-cta p{margin:0;color:rgba(255,255,255,.76);line-height:1.6;}
.khub-breadcrumb{font-size:13px;color:rgba(255,255,255,.68);margin-bottom:12px;}
.khub-breadcrumb a{color:#A7E1C7;text-decoration:none;}
.khub-category-hero{padding:126px 0 46px;background:linear-gradient(135deg,#031127,#061A3A);color:#fff;}
.khub-category-hero h1{font-size:clamp(34px,4.6vw,60px);line-height:1.04;margin:14px 0 12px;color:#fff;letter-spacing:-.04em;}
.khub-category-hero p{max-width:780px;color:rgba(255,255,255,.80);font-size:17px;line-height:1.7;margin:0;}
.khub-topic-layout{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:start;}
.khub-empty-card{background:#fff;border:1px dashed rgba(0,155,99,.45);border-radius:24px;padding:24px;}
.khub-empty-card h2{margin:0 0 12px;font-size:26px;}
.khub-empty-card p{color:var(--khub-muted);line-height:1.7;margin:0 0 16px;}
.khub-sidebar{display:grid;gap:16px;}
.khub-side-card{background:#fff;border:1px solid var(--khub-border);border-radius:22px;padding:18px;}
.khub-side-card h3{margin:0 0 12px;font-size:18px;}
.khub-side-card a{display:block;padding:10px 0;text-decoration:none;color:var(--khub-text);border-top:1px solid #edf2f7;font-weight:700;}
.khub-side-card a:hover{color:var(--khub-emerald);}
@media (max-width:920px){.khub-hero-grid,.khub-featured,.khub-topic-layout,.khub-cta{grid-template-columns:1fr}.khub-category-grid{grid-template-columns:1fr 1fr}.khub-plan-grid{grid-template-columns:1fr 1fr}.khub-cta .khub-btn{justify-self:start}}
@media (max-width:640px){.tkse-khub .wrap{padding-left:18px;padding-right:18px}.khub-hero{padding:112px 0 42px}.khub-category-grid,.khub-plan-grid{grid-template-columns:1fr}.khub-section-head{display:block}.khub-hero-card{padding:20px}.khub-category-card{padding:17px}.khub-cta{padding:24px;border-radius:24px}.khub-btn{width:100%;}}