/* guide.css — คลังความรู้ (/guide). Forked 2026-10-12 from insights.css + post.css so the knowledge base can be restyled freely without touching the blog. KB-specific rules are at the bottom ("KB additions"). */

/* ===== forked from insights.css ===== */
/* คลังความรู้ (blog listing) — magazine layout. DADWORK brand tones. */
:root{
  --kb-ink:#0f172a; --kb-ink2:#1e293b; --kb-muted:#64748b; --kb-faint:#94a3b8;
  --kb-line:#e9edf3; --kb-bg:#ffffff; --kb-soft:#f6f8fb; --kb-primary:#4f46e5;
  --kb-navy:#0b1220;
}
*{box-sizing:border-box}
body{margin:0;background:var(--kb-bg);color:var(--kb-ink);
  font-family:'Prompt','Inter',sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.kbx-wrap{max-width:1200px;margin:0 auto;padding:0 22px}

/* ── Nav ── */
.kbx-nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--kb-line)}
.kbx-nav-inner{max-width:1200px;margin:0 auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between}
.kbx-logo{font-family:'Inter',sans-serif;font-weight:900;font-size:1.4rem;letter-spacing:-.5px}
.kbx-logo span{color:var(--kb-primary)}
.kbx-logo img{height:clamp(22px,3.4vw,28px);width:auto}
.kbx-nav-links{display:flex;align-items:center;gap:26px;font-weight:600;font-size:.94rem}
.kbx-nav-links a{color:var(--kb-ink2);transition:color .2s}
.kbx-nav-links a:hover,.kbx-nav-links a.active{color:var(--kb-primary)}
.kbx-btn{position:relative;overflow:hidden;background:var(--kb-ink);color:#fff!important;padding:9px 20px;
  border-radius:99px;font-weight:700;border:0;cursor:pointer;font-family:inherit;font-size:.94rem;
  transition:background .25s ease,box-shadow .25s ease,transform .2s ease}
/* continuous "shine" sweep — visible in the default state */
.kbx-btn::before{content:'';position:absolute;top:0;left:-160%;width:55%;height:100%;pointer-events:none;
  background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.5) 50%,transparent 100%);
  transform:skewX(-22deg);animation:kbxShine 3s ease-in-out infinite}
@keyframes kbxShine{0%{left:-160%}55%,100%{left:160%}}
.kbx-btn:hover{background:linear-gradient(135deg,#fb923c,#ea580c);
  box-shadow:0 8px 22px rgba(234,88,12,.42);transform:translateY(-1px)}
.kbx-btn:hover::before{animation-duration:1.2s}
@media(prefers-reduced-motion:reduce){.kbx-btn::before{animation:none}}

/* Slide-down inline login */
.kbx-auth{position:relative}
.kbx-login-pop{position:absolute;top:calc(100% + 14px);right:0;width:290px;background:#fff;
  border:1px solid var(--kb-line);border-radius:16px;padding:18px;
  box-shadow:0 24px 50px rgba(15,23,42,.16);z-index:120;animation:kbxDrop .18s ease}
@keyframes kbxDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.kbx-login-pop::before{content:'';position:absolute;top:-7px;right:24px;width:14px;height:14px;background:#fff;
  border-left:1px solid var(--kb-line);border-top:1px solid var(--kb-line);transform:rotate(45deg)}
.kbx-login-pop h5{margin:0 0 12px;font-weight:800;font-size:.98rem}
.kbx-login-pop input{width:100%;padding:11px 13px;border:1px solid var(--kb-line);border-radius:10px;
  font-size:.92rem;margin-bottom:10px;box-sizing:border-box;font-family:inherit}
.kbx-login-pop input:focus{outline:none;border-color:var(--kb-primary)}
.kbx-login-pop button[type="submit"]{width:100%;padding:11px;border:0;border-radius:10px;background:var(--kb-ink);
  color:#fff;font-weight:700;font-size:.92rem;cursor:pointer;transition:background .2s;font-family:inherit}
.kbx-login-pop button[type="submit"]:hover{background:var(--kb-primary)}
.kbx-login-pop button[type="submit"]:disabled{opacity:.6;cursor:default}
.kbx-login-msg{font-size:.8rem;margin-top:9px;min-height:1em;text-align:center}
.kbx-spin{display:inline-block;width:13px;height:13px;border:2px solid rgba(234,88,12,.28);
  border-top-color:#ea580c;border-radius:50%;vertical-align:-2px;margin-right:5px;animation:kbxSpin .7s linear infinite}
@keyframes kbxSpin{to{transform:rotate(360deg)}}
.kbx-checking input{opacity:.55;pointer-events:none}
.kbx-login-forgot{display:block;text-align:center;margin-top:10px;font-size:.8rem;color:var(--kb-muted)}
.kbx-login-forgot:hover{color:var(--kb-primary)}
.kbx-login-cta{margin-top:14px;padding-top:14px;border-top:1px solid var(--kb-line);text-align:center;font-size:.8rem;color:var(--kb-muted);line-height:1.5}
.kbx-login-cta span{display:block}
.kbx-login-cta a{display:inline-block;margin-top:8px;background:linear-gradient(135deg,#fb923c,#ea580c);color:#fff;
  padding:8px 16px;border-radius:99px;font-weight:700;font-size:.82rem;text-decoration:none;transition:transform .2s,box-shadow .2s}
.kbx-login-cta a:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(234,88,12,.35)}
@media(max-width:640px){.kbx-login-pop{position:fixed;top:62px;left:12px;right:12px;width:auto}.kbx-login-pop::before{display:none}}

/* ── Masthead ── */
.kbx-masthead{padding:46px 0 26px}
.kbx-crumb{font-size:.82rem;color:var(--kb-faint);font-weight:500;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.kbx-crumb a:hover{color:var(--kb-primary)}
.kbx-crumb i{font-size:.7rem}
.kbx-masthead h1{font-family:'Inter','Prompt',sans-serif;font-weight:900;font-size:clamp(2.2rem,5vw,3.4rem);
  letter-spacing:-1.5px;margin:0 0 8px;display:flex;align-items:center;gap:14px}
.kbx-masthead h1 span{color:var(--kb-primary)}
.kbx-dot{width:16px;height:16px;border-radius:6px;display:inline-block}
.kbx-masthead p{color:var(--kb-muted);font-size:1.08rem;margin:0}

/* ── Filter tabs ── */
.kbx-tabs-wrap{position:sticky;top:57px;z-index:90;background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--kb-line);margin-bottom:40px}
.kbx-tabs{display:flex;gap:10px;padding:14px 22px;overflow-x:auto;scrollbar-width:none}
.kbx-tabs::-webkit-scrollbar{display:none}
.kbx-tab{white-space:nowrap;padding:8px 16px;border-radius:99px;font-weight:600;font-size:.88rem;
  color:var(--kb-ink2);background:var(--kb-soft);border:1px solid transparent;display:flex;align-items:center;gap:7px;transition:all .2s}
.kbx-tab:hover{border-color:var(--kb-line)}
.kbx-tab-dot{width:9px;height:9px;border-radius:50%}
.kbx-tab.active{background:var(--kb-ink);color:#fff;border-color:var(--kb-ink)}
.kbx-tab.active .kbx-tab-dot{background:#fff!important}

/* ── Category label chips ── */
.kbx-cat{position:absolute;top:12px;left:12px;color:#fff;font-weight:800;font-size:.66rem;
  letter-spacing:.6px;text-transform:uppercase;padding:5px 11px;border-radius:6px;
  box-shadow:0 4px 12px rgba(15,23,42,.22)}
.kbx-cat-text{font-weight:800;font-size:.68rem;letter-spacing:.7px;text-transform:uppercase}

/* ── Meta row ── */
.kbx-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--kb-faint);font-size:.8rem;font-weight:500}
.kbx-meta i{opacity:.8;margin-right:3px}

/* ── Hero ── */
.kbx-hero{display:grid;grid-template-columns:1.55fr 1fr;gap:30px;margin-bottom:56px}
.kbx-lead{display:flex;flex-direction:column;border-radius:18px;overflow:hidden;background:#fff;
  border:1px solid var(--kb-line);transition:transform .3s,box-shadow .3s}
.kbx-lead:hover{transform:translateY(-4px);box-shadow:0 24px 50px rgba(15,23,42,.13)}
.kbx-lead-img{position:relative;aspect-ratio:16/9;overflow:hidden}
.kbx-lead-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.kbx-lead:hover .kbx-lead-img img{transform:scale(1.04)}
.kbx-lead-body{padding:26px 28px 30px}
.kbx-lead-body h2{font-family:'Inter','Prompt',sans-serif;font-weight:900;font-size:1.7rem;line-height:1.3;
  letter-spacing:-.5px;margin:0 0 12px}
.kbx-lead-body p{color:var(--kb-muted);font-size:1rem;margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.kbx-side{display:flex;flex-direction:column;gap:20px}
.kbx-secondary{display:flex;flex-direction:column;gap:16px}
.kbx-scard{display:grid;grid-template-columns:104px 1fr;gap:14px;align-items:center}
.kbx-scard-img{aspect-ratio:1;border-radius:12px;overflow:hidden}
.kbx-scard-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.kbx-scard:hover .kbx-scard-img img{transform:scale(1.06)}
.kbx-scard-body h4{font-weight:700;font-size:.98rem;line-height:1.35;margin:5px 0 6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.kbx-scard:hover .kbx-scard-body h4{color:var(--kb-primary)}
.kbx-scard-meta{color:var(--kb-faint);font-size:.78rem;font-weight:500}

/* Popular rail */
.kbx-popular{background:var(--kb-soft);border-radius:16px;padding:20px 22px}
.kbx-popular h3{font-size:1rem;font-weight:800;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.kbx-popular h3 i{color:#f97316}
.kbx-popular ol{list-style:none;margin:0;padding:0;counter-reset:pop}
.kbx-popular li{border-top:1px solid var(--kb-line)}
.kbx-popular li:first-child{border-top:0}
.kbx-popular li a{display:flex;gap:13px;align-items:flex-start;padding:12px 0}
.kbx-rank{font-family:'Inter',sans-serif;font-weight:900;font-size:1.15rem;color:var(--kb-faint);
  min-width:22px;line-height:1.3}
.kbx-popular li:nth-child(1) .kbx-rank,.kbx-popular li:nth-child(2) .kbx-rank,.kbx-popular li:nth-child(3) .kbx-rank{color:var(--kb-primary)}
.kbx-rank-body{display:flex;flex-direction:column;gap:3px}
.kbx-rank-title{font-weight:600;font-size:.9rem;line-height:1.35;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.kbx-popular li a:hover .kbx-rank-title{color:var(--kb-primary)}
.kbx-rank-meta{color:var(--kb-faint);font-size:.76rem}

/* ── Section label ── */
.kbx-secline{display:flex;align-items:center;justify-content:space-between;
  border-bottom:2px solid var(--kb-ink);padding-bottom:12px;margin-bottom:28px}
.kbx-secline h3{font-family:'Inter','Prompt',sans-serif;font-weight:900;font-size:1.35rem;margin:0;text-transform:uppercase;letter-spacing:.5px}
.kbx-secline span{color:var(--kb-faint);font-size:.85rem;font-weight:600}

/* ── Card grid ── */
.kbx-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(285px,1fr));gap:28px;margin-bottom:20px}
.kbx-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--kb-line);
  border-radius:16px;overflow:hidden;transition:transform .3s,box-shadow .3s}
.kbx-card:hover{transform:translateY(-5px);box-shadow:0 20px 42px rgba(15,23,42,.12)}
.kbx-card-img{position:relative;aspect-ratio:16/10;overflow:hidden}
.kbx-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.kbx-card:hover .kbx-card-img img{transform:scale(1.05)}
.kbx-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.kbx-card-body h3{font-weight:800;font-size:1.12rem;line-height:1.4;margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.kbx-card:hover .kbx-card-body h3{color:var(--kb-primary)}
.kbx-card-body p{color:var(--kb-muted);font-size:.9rem;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.kbx-card-body .kbx-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--kb-line)}
.kbx-empty{text-align:center;color:var(--kb-faint);padding:60px 0;font-size:1rem}

/* ── Pagination ── */
.kbx-pager{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin:44px 0 10px}
.kbx-page{min-width:42px;height:42px;display:flex;align-items:center;justify-content:center;
  border-radius:11px;font-weight:700;background:var(--kb-soft);color:var(--kb-ink);transition:all .2s}
.kbx-page:hover{background:#e6e9f0}
.kbx-page.active{background:var(--kb-ink);color:#fff}
.kbx-pnav{padding:0 18px;height:42px;display:flex;align-items:center;gap:7px;border-radius:11px;
  background:var(--kb-ink);color:#fff;font-weight:700;font-size:.9rem}
.kbx-pnav:hover{background:var(--kb-primary)}
.kbx-pnav.off{opacity:.28;pointer-events:none}
.kbx-ell{color:var(--kb-faint);padding:0 4px;font-weight:800}

/* ── Funnel CTA ── */
.kbx-cta{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  background:linear-gradient(135deg,#0f172a,#1e293b 55%,#312e81);color:#fff;
  border-radius:22px;padding:40px 46px;margin:60px 0 90px}
.kbx-cta h2{font-family:'Inter','Prompt',sans-serif;font-weight:900;font-size:1.7rem;margin:0 0 6px}
.kbx-cta p{color:#c7d0e0;margin:0;font-size:1rem}
.kbx-cta-btn{background:#fff;color:#0f172a;font-weight:800;padding:15px 30px;border-radius:99px;
  white-space:nowrap;display:inline-flex;align-items:center;gap:9px;transition:transform .2s,box-shadow .2s}
.kbx-cta-btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,255,255,.22)}

/* ── Footer ── */
.kbx-footer{background:var(--kb-navy);color:#fff;text-align:center;padding:70px 0 40px}
.kbx-flogo{font-family:'Inter',sans-serif;font-weight:900;font-size:1.8rem;display:inline-block;margin-bottom:14px}
.kbx-flogo span{color:var(--kb-primary)}
.kbx-flogo img{height:clamp(30px,5vw,40px);width:auto}
.kbx-footer p{color:#94a3b8;max-width:480px;margin:0 auto 34px}
.kbx-fbottom{border-top:1px solid rgba(255,255,255,.1);padding-top:28px;color:#475569;font-size:.84rem}

/* ── Responsive ── */
@media(max-width:900px){
  .kbx-hero{grid-template-columns:1fr;gap:26px}
  .kbx-lead-body h2{font-size:1.4rem}
}
@media(max-width:640px){
  .kbx-nav-links{gap:16px;font-size:.86rem}
  .kbx-nav-links > a:not(.kbx-btn){display:none}
  .kbx-tabs-wrap{top:57px}
  .kbx-cta{padding:32px 26px;text-align:center;justify-content:center}
  .kbx-grid{grid-template-columns:1fr;gap:22px}
}

/* ===== forked from post.css ===== */
/* Single post (อ่านบทความ) — magazine reader. Loads on top of insights.css. */

/* Reading progress bar */
.kbx-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--kb-primary),#8b5cf6);transition:width .1s linear}

/* Article shell + two-column layout (article + sticky sidebar) */
.kbx-post-shell{max-width:1140px;margin:0 auto;padding:0 22px}
.kbx-crumb-top{padding-top:26px}
.kbx-post-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;align-items:start}
.kbx-post-main{min-width:0}
.kbx-post-aside{position:sticky;top:76px;display:flex;flex-direction:column;gap:22px}
.kbx-article h2,.kbx-article h3{scroll-margin-top:74px}

/* Table of contents */
.kbx-toc{border:1px solid var(--kb-line);border-radius:16px;padding:18px 20px}
.kbx-toc h4{margin:0 0 12px;font-size:.95rem;font-weight:800;display:flex;align-items:center;gap:8px;color:var(--kb-ink)}
.kbx-toc h4 i{color:var(--kb-primary)}
.kbx-toc nav{display:flex;flex-direction:column;max-height:60vh;overflow:auto}
.kbx-toc a{color:var(--kb-muted);font-size:.88rem;line-height:1.4;padding:7px 0 7px 14px;
  border-left:2px solid var(--kb-line);transition:all .18s}
.kbx-toc a.lvl3{padding-left:26px;font-size:.83rem}
.kbx-toc a:hover{color:var(--kb-ink)}
.kbx-toc a.active{color:var(--kb-primary);border-left-color:var(--kb-primary);font-weight:600}

/* Sidebar popular */
.kbx-aside-pop{border:1px solid var(--kb-line);border-radius:16px;padding:18px 20px}
.kbx-aside-pop h4{margin:0 0 6px;font-size:.95rem;font-weight:800;display:flex;align-items:center;gap:8px}
.kbx-aside-pop h4 i{color:#f97316}
.kbx-aside-item{display:grid;grid-template-columns:56px 1fr;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--kb-line)}
.kbx-aside-item img{width:56px;height:56px;border-radius:10px;object-fit:cover}
.kbx-aside-item .t{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-weight:600;font-size:.86rem;line-height:1.35}
.kbx-aside-item:hover .t{color:var(--kb-primary)}
.kbx-aside-item .m{color:var(--kb-faint);font-size:.76rem;margin-top:3px;display:block}

/* Sidebar course promo (Blognone-style rail → our courses) */
.kbx-aside-courses{border:1px solid var(--kb-line);border-radius:16px;padding:18px 20px}
.kbx-aside-courses h4{margin:0 0 6px;font-size:.95rem;font-weight:800;display:flex;align-items:center;gap:8px}
.kbx-aside-courses h4 i{color:var(--kb-primary)}
.kbx-course-mini{display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--kb-line)}
.kbx-course-mini img{width:64px;height:48px;border-radius:9px;object-fit:cover}
.kbx-course-mini .t{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-weight:700;font-size:.86rem;line-height:1.35}
.kbx-course-mini:hover .t{color:var(--kb-primary)}
.kbx-course-mini .p{color:var(--kb-primary);font-weight:800;font-size:.85rem;margin-top:3px;display:block}
.kbx-course-all{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-weight:700;
  font-size:.86rem;color:var(--kb-primary)}

/* Sidebar CTA (fallback when no courses) */
.kbx-aside-cta{display:flex;flex-direction:column;gap:5px;padding:22px;border-radius:16px;
  background:linear-gradient(135deg,#0f172a,#312e81);color:#fff}
.kbx-aside-cta strong{font-size:1.05rem}
.kbx-aside-cta span{color:#c7d0e0;font-size:.85rem}
.kbx-aside-cta .go{color:#fff;font-weight:700;margin-top:8px;display:inline-flex;align-items:center;gap:6px}

@media(max-width:960px){
  .kbx-post-layout{grid-template-columns:1fr;gap:0}
  .kbx-post-aside{position:static;margin-top:30px}
  .kbx-toc{display:none}
}

/* Hero */
.kbx-post-hero{padding:40px 0 8px}
.kbx-post-cat{display:inline-flex;align-items:center;gap:7px;color:#fff;font-weight:800;
  font-size:.72rem;letter-spacing:.8px;text-transform:uppercase;padding:6px 14px;border-radius:8px;margin-bottom:20px}
.kbx-post-title{font-family:'Inter','Prompt',sans-serif;font-weight:900;
  font-size:clamp(2rem,4.6vw,3rem);line-height:1.22;letter-spacing:-1px;margin:0 0 18px;color:var(--kb-ink)}
.kbx-post-lead{font-size:1.18rem;color:var(--kb-muted);line-height:1.6;margin:0 0 26px}

.kbx-byline{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:18px 0;border-top:1px solid var(--kb-line);border-bottom:1px solid var(--kb-line)}
.kbx-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--kb-ink),var(--kb-primary));
  color:#fff;font-weight:900;font-family:'Inter';display:flex;align-items:center;justify-content:center;font-size:1.1rem}
.kbx-byline-who{font-weight:800;font-size:.95rem;color:var(--kb-ink)}
.kbx-byline-meta{color:var(--kb-faint);font-size:.82rem;display:flex;gap:12px;flex-wrap:wrap;margin-top:2px}
.kbx-byline-meta i{margin-right:3px;opacity:.85}
.kbx-share{margin-left:auto;display:flex;gap:9px}
.kbx-share button,.kbx-share a{width:38px;height:38px;border-radius:50%;border:1px solid var(--kb-line);
  background:#fff;color:var(--kb-ink2);display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:1rem;transition:all .2s;text-decoration:none}
.kbx-share button:hover,.kbx-share a:hover{transform:translateY(-2px);border-color:transparent;color:#fff;background:var(--kb-primary)}
.kbx-share .s-fb:hover{background:#1877f2}.kbx-share .s-ln:hover{background:#06c755}.kbx-share .s-x:hover{background:#0f172a}

/* Cover */
.kbx-cover{margin:30px 0 44px}
.kbx-cover img{width:100%;border-radius:18px;box-shadow:0 30px 60px rgba(15,23,42,.12);aspect-ratio:16/9;object-fit:cover}

/* Body typography */
.kbx-article{font-size:1.14rem;line-height:1.85;color:#26303f}
/* drop cap — owner prefers it (2026-09-28: tried a lead paragraph instead, went back) */
.kbx-article>p:first-of-type::first-letter{float:left;font-family:'Inter',serif;font-weight:900;
  font-size:3.6rem;line-height:.82;padding:6px 14px 0 0;color:var(--kb-primary)}
.kbx-article p{margin:0 0 26px}
/* จัดชิดสองข้างภาษาไทย (เจ้าของขอ 2026-09-28): เบราว์เซอร์ยืด "ช่องว่างระหว่างคำ" — ไทยแทบไม่มีช่องว่าง
   ทั้งบรรทัดจึงไปยืดที่ช่องว่างไม่กี่จุด (ข้าง ๆ คำอังกฤษ) จนเป็นรูโหว่ · inter-character = กระจายช่องไฟ
   ทีละตัวอักษรแทน ขอบเรียบไม่มีรู (Chrome 152 / Firefox รองรับ — Safari ยังไม่รองรับ) */
.kbx-article p,.kbx-article li{text-justify:inter-character}
@supports (text-justify: inter-character){
  @media(min-width:768px){ .kbx-article>p{text-align:justify} }   /* ชิดสองข้างเป็นค่าเริ่มต้นบนจอกว้าง ไม่ต้องกดทีละย่อหน้า */
}
/* เบราว์เซอร์ที่ยังกระจายทีละตัวอักษรไม่ได้ (Safari/iPhone) — ชิดซ้ายแทน แม้กดชิดสองข้างไว้ในตัวแก้ไข */
@supports not (text-justify: inter-character){
  .kbx-article [style*="justify"]{text-align:left !important}
}
.kbx-article h2{font-family:'Inter','Prompt',sans-serif;font-weight:900;font-size:1.7rem;
  line-height:1.3;margin:48px 0 20px;color:var(--kb-ink);letter-spacing:-.4px}
.kbx-article h3{font-weight:800;font-size:1.32rem;margin:36px 0 16px;color:var(--kb-ink)}
.kbx-article ul,.kbx-article ol{margin:0 0 26px;padding-left:26px}
.kbx-article li{margin-bottom:10px}
.kbx-article a{color:var(--kb-primary);text-decoration:underline;text-underline-offset:3px}
.kbx-article img{width:100%;border-radius:14px;margin:34px 0;box-shadow:0 16px 36px rgba(15,23,42,.1)}
.kbx-article blockquote{margin:40px 0;padding:26px 32px;background:var(--kb-soft);
  border-left:5px solid var(--kb-primary);border-radius:0 14px 14px 0;
  font-size:1.32rem;font-weight:700;font-style:italic;color:var(--kb-ink);line-height:1.5}
.kbx-article blockquote p{margin:0}
/* "ที่มา" box appended to AI news posts (admin/blog_ai_controller.php) */
.kbx-article .post-sources{margin:44px 0 0;padding:18px 22px;border-top:2px solid var(--kb-soft);background:#F8FAFC;border-radius:12px;font-size:.92rem;line-height:1.6;color:#475569}
.kbx-article .post-sources p{margin:0 0 8px}
.kbx-article .post-sources ul{margin:0;padding-left:20px}
.kbx-article .post-sources li{margin-bottom:6px;word-break:break-word}
.kbx-article .post-sources em{color:#94A3B8;font-style:normal}
/* inline figures placed by the AI writer (admin/blog_ai_controller.php blog_ai_figure) */
.kbx-article .post-figure,.kbx-article figure.image{margin:34px 0;display:block}
.kbx-article .post-figure img,.kbx-article figure.image img{margin:0}
.kbx-article .post-figure figcaption,.kbx-article figure.image figcaption{margin-top:10px;font-size:.85rem;line-height:1.5;color:#64748B;text-align:center}
/* "⚡ สรุปใน 30 วินาที" box at the top of AI posts */
.kbx-article .post-tldr{margin:0 0 34px;padding:20px 24px;background:linear-gradient(135deg,#EEF2FF,#F5F3FF);border:1px solid #C7D2FE;border-radius:14px;font-size:1.02rem;line-height:1.7}
.kbx-article .post-tldr p{margin:0 0 8px;color:#3730A3;font-size:.95rem}
.kbx-article .post-tldr ul{margin:0;padding-left:22px}
.kbx-article .post-tldr li{margin-bottom:6px;color:#1E293B}
.kbx-article .post-tldr li:last-child{margin-bottom:0}
.kbx-article code{background:var(--kb-soft);padding:2px 8px;border-radius:6px;font-size:.92em}
.kbx-article pre{background:var(--kb-navy);color:#e2e8f0;padding:22px;border-radius:14px;overflow:auto;margin:0 0 26px}
.kbx-article pre code{background:none;padding:0;color:inherit}
.kbx-article table{width:100%;border-collapse:collapse;margin:0 0 26px;font-size:.98rem}
.kbx-article th,.kbx-article td{border:1px solid var(--kb-line);padding:11px 14px;text-align:left}
.kbx-article th{background:var(--kb-soft);font-weight:700}
.kbx-article hr{border:0;border-top:1px solid var(--kb-line);margin:40px 0}

/* Category tag chip below the article */
.kbx-tagline{margin:44px 0 0;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.kbx-tagline .lbl{color:var(--kb-faint);font-size:.85rem;font-weight:600}
.kbx-chip{display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:99px;
  font-weight:700;font-size:.85rem;background:var(--kb-soft);color:var(--kb-ink2)}
.kbx-chip .d{width:9px;height:9px;border-radius:50%}
.kbx-chip-tag{background:#eef2ff;color:var(--kb-primary)}
.kbx-chip-tag:hover{background:var(--kb-primary);color:#fff}

/* Author box */
.kbx-author{display:flex;gap:20px;align-items:flex-start;margin:44px 0;padding:28px 30px;
  background:var(--kb-soft);border-radius:18px}
.kbx-author .kbx-avatar{width:62px;height:62px;font-size:1.6rem;flex-shrink:0}
.kbx-author h4{margin:0 0 6px;font-weight:800;font-size:1.1rem}
.kbx-author p{margin:0;color:var(--kb-muted);font-size:.95rem;line-height:1.6}

/* Related section wrapper on a soft band */
.kbx-related{background:var(--kb-soft);border-top:1px solid var(--kb-line);padding:64px 0 80px;margin-top:70px}

@media(max-width:640px){
  .kbx-share{margin-left:0;width:100%;margin-top:6px}
  .kbx-article>p:first-of-type::first-letter{font-size:3rem}
}

/* ===================================================================
   KB additions — คลังความรู้ only
   =================================================================== */
:root{ --kb-primary:#2563EB; --kb-accent:#65B8FF; }   /* brand blue (matches the logo) instead of the blog's indigo */

/* masthead search */
.kbg-search{display:flex;gap:8px;max-width:560px;margin-top:22px}
.kbg-search input{flex:1;padding:13px 16px;border:1px solid var(--kb-line);border-radius:12px;font:inherit;font-size:1rem;background:#fff}
.kbg-search input:focus{outline:none;border-color:var(--kb-primary);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.kbg-search button{padding:0 20px;border:0;border-radius:12px;background:var(--kb-ink);color:#fff;font:inherit;font-weight:700;cursor:pointer}

/* collection cards */
.kbg-cols{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;margin:8px 0 48px}
.kbg-col{display:flex;flex-direction:column;background:#fff;border:1px solid var(--kb-line);border-radius:18px;padding:24px;
  text-decoration:none;color:inherit;transition:transform .2s,box-shadow .2s,border-color .2s;position:relative;overflow:hidden}
.kbg-col::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--col,#2563EB)}
.kbg-col:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(15,23,42,.08);border-color:transparent}
.kbg-col-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;
  background:color-mix(in srgb,var(--col,#2563EB) 12%,#fff);margin-bottom:16px}
.kbg-col h3{font-family:'Inter','Prompt',sans-serif;font-size:1.25rem;font-weight:800;margin:0 0 8px;color:var(--kb-ink)}
.kbg-col p{color:var(--kb-muted);margin:0 0 18px;font-size:.95rem;line-height:1.6}
.kbg-col-meta{margin-top:auto;display:flex;gap:14px;flex-wrap:wrap;color:var(--kb-faint);font-size:.85rem}
.kbg-col-meta b{color:var(--kb-ink2)}

/* guide list rows (collection page, recent, search) */
.kbg-list{display:flex;flex-direction:column;gap:12px;margin:8px 0 48px}
.kbg-row{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--kb-line);border-radius:14px;padding:18px 20px;
  text-decoration:none;color:inherit;transition:border-color .2s,box-shadow .2s}
.kbg-row:hover{border-color:var(--kb-primary);box-shadow:0 10px 26px rgba(37,99,235,.08)}
.kbg-num{flex:0 0 38px;height:38px;border-radius:10px;background:var(--kb-soft);color:var(--kb-primary);font-weight:800;
  display:flex;align-items:center;justify-content:center;font-family:'Inter',sans-serif}
.kbg-row h3{margin:0 0 4px;font-size:1.06rem;font-weight:700;color:var(--kb-ink)}
.kbg-row p{margin:0;color:var(--kb-muted);font-size:.92rem;line-height:1.55}
.kbg-row-meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px;color:var(--kb-faint);font-size:.8rem}
.kbg-row-go{margin-left:auto;color:var(--kb-faint);align-self:center}
.kbg-level{display:inline-flex;align-items:center;gap:5px;padding:2px 9px;border-radius:99px;font-size:.75rem;font-weight:700;
  background:#EFF6FF;color:#1D4ED8}
.kbg-level.intermediate{background:#FEF3C7;color:#92400E}
.kbg-level.advanced{background:#FEE2E2;color:#991B1B}
.kbg-colchip{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:700;color:var(--kb-ink2)}
.kbg-colchip .d{width:8px;height:8px;border-radius:50%;background:var(--col,#2563EB)}

/* guide page: chapter rail + prev/next + updated badge + course CTA */
.kbg-updated{display:inline-flex;align-items:center;gap:6px;background:#ECFDF5;color:#047857;padding:3px 10px;border-radius:99px;font-size:.8rem;font-weight:700}
.kbg-chapters{background:#fff;border:1px solid var(--kb-line);border-radius:16px;padding:18px;margin-bottom:20px}
.kbg-chapters h4{margin:0 0 10px;font-size:.9rem;font-weight:800;color:var(--kb-ink)}
.kbg-chapters h4 a{color:inherit;text-decoration:none}
.kbg-chapters ol{list-style:none;margin:0;padding:0;counter-reset:ch}
.kbg-chapters li a{display:flex;gap:10px;padding:8px 10px;border-radius:10px;text-decoration:none;color:var(--kb-ink2);font-size:.88rem;line-height:1.45}
.kbg-chapters li a::before{counter-increment:ch;content:counter(ch);flex:0 0 22px;height:22px;border-radius:7px;background:var(--kb-soft);
  color:var(--kb-muted);font-size:.75rem;font-weight:800;display:flex;align-items:center;justify-content:center}
.kbg-chapters li a:hover{background:var(--kb-soft)}
.kbg-chapters li a.cur{background:#EFF6FF;color:#1D4ED8;font-weight:700}
.kbg-chapters li a.cur::before{background:var(--kb-primary);color:#fff}
.kbg-pn{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:36px 0 10px}
.kbg-pn a{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--kb-line);border-radius:14px;text-decoration:none;color:var(--kb-ink);transition:border-color .2s}
.kbg-pn a:hover{border-color:var(--kb-primary)}
.kbg-pn small{color:var(--kb-faint);font-size:.78rem;font-weight:700}
.kbg-pn b{font-size:.95rem;line-height:1.4}
.kbg-pn .next{text-align:right;grid-column:2}
.kbg-course{display:flex;gap:16px;align-items:center;margin:28px 0;padding:18px;border-radius:16px;
  background:linear-gradient(135deg,#0B1D33,#1E3A8A);color:#fff;text-decoration:none}
.kbg-course img{width:96px;height:64px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.kbg-course small{color:#93C5FD;font-weight:700;font-size:.78rem}
.kbg-course b{display:block;font-size:1.02rem;margin-top:2px}
.kbg-course .go{margin-left:auto;background:#fff;color:#0B1D33;padding:9px 16px;border-radius:99px;font-weight:800;font-size:.85rem;white-space:nowrap}
.kbx-article pre{background:#0F172A;color:#E2E8F0;padding:16px 18px;border-radius:12px;overflow-x:auto;font-size:.88rem;line-height:1.6}
.kbx-article code{font-family:'JetBrains Mono',Consolas,monospace}
.kbx-article :not(pre)>code{background:#EEF2FF;color:#3730A3;padding:1px 6px;border-radius:6px;font-size:.9em}
/* no drop cap in guides: Thai leading vowels (เ แ โ) get split off as the 'first letter' */
.kbx-article>p:first-of-type::first-letter{float:none;font:inherit;color:inherit;margin:0;padding:0;line-height:inherit}
.kbg-empty{padding:60px 20px;text-align:center;color:var(--kb-muted);border:1px dashed var(--kb-line);border-radius:18px;margin:10px 0 48px}

@media (max-width:720px){
  .kbg-pn{grid-template-columns:1fr}
  .kbg-pn .next{grid-column:auto}
  .kbg-course{flex-wrap:wrap}
  .kbg-course .go{margin-left:0}
  .kbg-row-go{display:none}
}

/* ── reading modes + slide viewer (guide_view.php, js/guide-slides.js) ── */
.kbg-modes{display:inline-flex;gap:4px;margin-top:18px;padding:4px;background:var(--kb-soft);border:1px solid var(--kb-line);border-radius:12px}
.kbg-modes span,.kbg-modes button{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:9px;font:inherit;font-size:.9rem;font-weight:700;border:0;cursor:pointer}
.kbg-modes .on{background:#fff;color:var(--kb-ink);box-shadow:0 1px 3px rgba(15,23,42,.08);cursor:default}
.kbg-modes button{background:transparent;color:var(--kb-primary)}
.kbg-modes button:hover{background:#EFF6FF}
.kbg-modes small{font-weight:600;color:var(--kb-faint)}
html.kbs-lock{overflow:hidden}
.kbs{position:fixed;inset:0;z-index:1000;display:flex;flex-direction:column;background:radial-gradient(1200px 600px at 80% -10%,#1E3A8A 0%,transparent 60%),#0B1220;color:#E2E8F0}
.kbs[hidden]{display:none}
.kbs-top{display:flex;align-items:center;gap:14px;padding:14px 20px}
.kbs-title{flex:1;min-width:0;font-weight:700;font-size:.92rem;color:#94A3B8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kbs-count{font-size:.9rem;color:#94A3B8}
.kbs-count b{color:#fff}
.kbs-close{width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:#fff;cursor:pointer;font-size:1rem}
.kbs-bar{height:3px;background:rgba(255,255,255,.08)}
.kbs-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,#2563EB,#65B8FF);transition:width .3s}
.kbs-stage{flex:1;display:flex;align-items:center;justify-content:center;padding:24px;overflow:auto}
.kbs-slide{width:100%;max-width:980px;animation:kbsIn .35s ease}
@keyframes kbsIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.kbs-card{padding:clamp(24px,5vw,56px);border-radius:24px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
.kbs-kicker{display:inline-block;margin-bottom:16px;padding:5px 12px;border-radius:99px;background:rgba(101,184,255,.14);color:#93C5FD;font-size:.85rem;font-weight:700}
.kbs-card h2{margin:0 0 22px;font-family:'Inter','Prompt',sans-serif;font-weight:800;font-size:clamp(1.6rem,3.6vw,2.6rem);line-height:1.25;color:#fff}
.kbs-slide.first .kbs-card h2{font-size:clamp(2rem,4.6vw,3.2rem)}
.kbs-card ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:14px}
.kbs-card li{position:relative;padding-left:34px;font-size:clamp(1.05rem,2vw,1.35rem);line-height:1.6;color:#CBD5E1}
.kbs-card li::before{content:"";position:absolute;left:4px;top:.62em;width:12px;height:12px;border-radius:4px;background:linear-gradient(135deg,#2563EB,#65B8FF)}
.kbs-card p{margin:20px 0 0;font-size:clamp(1rem,1.8vw,1.2rem);color:#94A3B8;line-height:1.7}
.kbs-card pre{margin:22px 0 0;padding:16px 18px;border-radius:14px;background:#020617;border:1px solid rgba(255,255,255,.08);overflow-x:auto;font-size:clamp(.82rem,1.5vw,1rem);color:#E2E8F0}
.kbs-nav{display:flex;align-items:center;justify-content:center;gap:12px;padding:14px 20px 22px}
.kbs-nav button{height:48px;min-width:48px;padding:0 18px;border-radius:14px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:#fff;font:inherit;font-weight:700;cursor:pointer}
.kbs-nav button:disabled{opacity:.3;cursor:default}
.kbs-nav #kbsNext{background:#2563EB;border-color:#2563EB}
.kbs-nav .kbs-long{font-size:.88rem;color:#CBD5E1}
@media (max-width:720px){ .kbs-stage{align-items:flex-start;padding:16px} .kbs-card{border-radius:18px} }
/* wide content must never widen the page (a 406px table stretched the mobile viewport to 429px, 2026-10-12) */
.kbx-article table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
.kbx-article pre{max-width:100%}
.kbs-stage,.kbs-slide,.kbs-card{min-width:0;max-width:100%}
.kbs-slide{max-width:min(980px,100%)}
.kbs-card pre{max-width:100%}

/* ── ตัวล็อกรายบท (2026-10-13): ต้นเรื่องจางลงท้าย + กล่องปลดล็อก ── */
.kbg-teaser{position:relative;max-height:none;-webkit-mask-image:linear-gradient(#000 55%,transparent);mask-image:linear-gradient(#000 55%,transparent)}
.kbg-lock{margin:-8px 0 34px;padding:26px 24px;border:1.5px solid #c7d2fe;border-radius:18px;text-align:center;
  background:linear-gradient(180deg,#f8faff,#eef2ff)}
.kbg-lock-ic{width:52px;height:52px;margin:0 auto 10px;border-radius:50%;display:grid;place-items:center;
  background:var(--kb-primary);color:#fff;font-size:1.3rem;box-shadow:0 10px 24px -12px var(--kb-primary)}
.kbg-lock h3{margin:0 0 6px;font:700 1.25rem 'Prompt',sans-serif;color:var(--kb-ink)}
.kbg-lock p{margin:0 auto 12px;max-width:520px;color:var(--kb-muted);line-height:1.7}
.kbg-lock-items{list-style:none;margin:0 auto 14px;padding:0;display:inline-flex;flex-direction:column;gap:6px;text-align:left}
.kbg-lock-items li{font-weight:600;color:var(--kb-ink2)}
.kbg-lock-items a{color:var(--kb-primary);text-decoration:underline;text-underline-offset:3px}
.kbg-lock-act{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;align-items:center}
.kbg-lock-act a{display:inline-flex;gap:6px;align-items:center;padding:10px 18px;border-radius:999px;font-weight:700;
  text-decoration:none;border:1.5px solid var(--kb-primary);color:var(--kb-primary);background:#fff}
.kbg-lock-act a.p{background:var(--kb-primary);color:#fff}
.kbg-lock-note{font-size:.88rem;color:var(--kb-muted)}
.kbg-lk{font-size:.72em;color:var(--kb-faint);margin-left:2px}
.kbg-acc{display:inline-flex;gap:4px;align-items:center;font-size:.74rem;font-weight:700;color:#4338ca;background:#eef2ff;border-radius:999px;padding:2px 9px}