/* ==========================================================================
   LamLab Journal — blog index + article styles
   Uses design-system tokens from styles.css (navy / teal / Manrope / Poppins)
   ========================================================================== */
*,*::before,*::after{box-sizing:border-box}
body{margin:0;font-family:var(--font-body),"Manrope",system-ui,sans-serif;background:#fff;color:var(--text-body)}
a{color:var(--teal-dark);text-decoration:none}
a:hover{color:var(--teal-dark)}
img{max-width:100%;display:block}

/* ---- shared site header ---- */
.bl-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,0.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.bl-header-in{max-width:1180px;margin:0 auto;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.bl-logo{height:26px;width:auto}
.bl-nav{display:flex;gap:32px;align-items:center}
.bl-nav a:not(.bl-cta){position:relative;font-family:var(--font-head),"Poppins",sans-serif;font-size:12px;font-weight:600;color:var(--text-body);letter-spacing:1.2px;text-transform:uppercase;padding:2px 0;transition:color .18s}
.bl-nav a:not(.bl-cta):hover{color:var(--teal-dark)}
.bl-nav a:not(.bl-cta)::after{content:"";position:absolute;left:0;right:100%;bottom:-5px;height:1.5px;background:var(--teal-bright);transition:right .22s}
.bl-nav a:not(.bl-cta):hover::after,.bl-nav a.active::after{right:0}
.bl-nav a.active{color:var(--navy);font-weight:700}
.bl-cta{display:inline-flex;align-items:center;gap:8px;background:var(--navy);color:#fff!important;font-family:var(--font-head),"Poppins",sans-serif;font-weight:600;font-size:13px;padding:10px 18px;border-radius:999px;letter-spacing:.2px;transition:background .2s}
.bl-cta:hover{background:var(--teal-dark)}
.bl-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.bl-burger span{width:22px;height:2px;background:var(--navy);display:block}

/* ---- index hero ---- */
.bl-wrap{max-width:920px;margin:0 auto;padding:0 32px}
.bl-hero{padding:72px 0 40px;border-bottom:1px solid var(--border)}
.bl-hero .bl-eyebrow{font-family:var(--font-head),"Poppins",sans-serif;font-weight:600;font-size:12px;letter-spacing:2.5px;text-transform:uppercase;color:var(--teal-dark);margin:0 0 16px}
.bl-hero h1{font-family:var(--font-head),"Poppins",sans-serif;font-weight:800;font-size:clamp(38px,6vw,60px);line-height:1.02;letter-spacing:-.02em;color:var(--navy);margin:0 0 18px}
.bl-hero p{font-size:19px;line-height:1.6;color:var(--text-body);max-width:600px;margin:0}

/* ---- search + filters ---- */
.bl-tools{position:sticky;top:59px;z-index:10;background:rgba(255,255,255,0.94);backdrop-filter:blur(10px);padding:20px 0 18px;border-bottom:1px solid var(--border)}
.bl-search{position:relative;margin-bottom:16px}
.bl-search input{width:100%;font-family:var(--font-body);font-size:16px;color:var(--navy);padding:14px 18px 14px 46px;border:1px solid var(--border-strong);border-radius:12px;outline:none;background:#fff;transition:border-color .15s,box-shadow .15s}
.bl-search input:focus{border-color:var(--teal-bright);box-shadow:0 0 0 3px var(--teal-12)}
.bl-search svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--grey-mid)}
.bl-chips{display:flex;flex-wrap:wrap;gap:8px}
.bl-chip{font-family:var(--font-body);font-size:13px;font-weight:600;color:var(--text-body);background:var(--off-white);border:1px solid var(--border);padding:7px 15px;border-radius:999px;cursor:pointer;transition:all .15s}
.bl-chip:hover{border-color:var(--teal-bright);color:var(--navy)}
.bl-chip.active{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ---- post list ---- */
.bl-list{padding:8px 0 40px}
.bl-count{font-family:var(--font-body);font-size:13px;color:var(--grey-mid);padding:22px 0 6px;letter-spacing:.3px}
.bl-row{display:grid;grid-template-columns:120px 1fr;gap:28px;padding:26px 0;border-bottom:1px solid var(--border);align-items:start}
.bl-row:hover .bl-row-title{color:var(--teal-dark)}
.bl-row-meta{font-family:var(--font-body);font-size:13px;color:var(--grey-mid);line-height:1.5;padding-top:3px}
.bl-row-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--teal-dark);margin-bottom:6px}
.bl-row-title{font-family:var(--font-head),"Poppins",sans-serif;font-weight:700;font-size:23px;line-height:1.22;letter-spacing:-.01em;color:var(--navy);margin:0 0 8px;transition:color .15s}
.bl-row-desc{font-size:15.5px;line-height:1.6;color:var(--text-body);margin:0}
.bl-empty{padding:60px 0;text-align:center;color:var(--grey-mid);font-size:16px}

/* ---- article page ---- */
.bl-article{max-width:720px;margin:0 auto;padding:0 32px}
.bl-crumb{font-family:var(--font-body);font-size:13px;color:var(--grey-mid);padding:34px 0 0;letter-spacing:.2px}
.bl-crumb a{color:var(--grey-mid)}
.bl-crumb a:hover{color:var(--teal-dark)}
.bl-art-head{padding:22px 0 26px;border-bottom:1px solid var(--border);margin-bottom:34px}
.bl-art-tag{display:inline-block;font-family:var(--font-head),"Poppins",sans-serif;font-size:12px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--teal-dark);margin-bottom:16px}
.bl-art-head h1{font-family:var(--font-head),"Poppins",sans-serif;font-weight:800;font-size:clamp(30px,5vw,44px);line-height:1.08;letter-spacing:-.02em;color:var(--navy);margin:0 0 20px}
.bl-art-meta{display:flex;align-items:center;gap:12px;font-family:var(--font-body);font-size:14px;color:var(--grey-mid)}
.bl-art-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--grey-mid);display:inline-block}
.bl-art-meta strong{color:var(--navy);font-weight:600}
.bl-video{position:relative;width:100%;aspect-ratio:16/9;border-radius:14px;overflow:hidden;margin:0 0 34px;background:#000;box-shadow:var(--shadow-md)}
.bl-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* article body typography */
.bl-body{font-size:18.5px;line-height:1.78;color:var(--text-body)}
.bl-body>*:first-child{margin-top:0}
.bl-body p{margin:0 0 24px}
.bl-body h2{font-family:var(--font-head),"Poppins",sans-serif;font-weight:700;font-size:27px;line-height:1.2;letter-spacing:-.01em;color:var(--navy);margin:44px 0 18px}
.bl-body h3{font-family:var(--font-head),"Poppins",sans-serif;font-weight:700;font-size:20px;line-height:1.3;color:var(--navy);margin:34px 0 14px}
.bl-body ul,.bl-body ol{margin:0 0 24px;padding-left:24px}
.bl-body li{margin:0 0 11px;padding-left:4px}
.bl-body li::marker{color:var(--teal-dark)}
.bl-body strong{color:var(--navy);font-weight:700}
.bl-body a{color:var(--teal-dark);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.bl-body a:hover{color:var(--navy)}
.bl-body hr{border:0;border-top:1px solid var(--border);margin:38px 0}
.bl-body img{border-radius:12px;margin:10px 0 30px;box-shadow:var(--shadow-sm)}
.bl-body blockquote{margin:0 0 26px;padding:6px 0 6px 24px;border-left:3px solid var(--teal-bright);font-style:italic;color:var(--navy)}
.bl-table-wrap{overflow-x:auto;margin:0 0 30px;border:1px solid var(--border);border-radius:12px}
.bl-body table{width:100%;border-collapse:collapse;font-size:15px}
.bl-body thead th{background:var(--navy);color:#fff;font-family:var(--font-head),"Poppins",sans-serif;font-weight:600;font-size:12.5px;letter-spacing:.4px;text-align:left;padding:12px 14px;white-space:nowrap}
.bl-body tbody td{padding:12px 14px;border-top:1px solid var(--border);color:var(--text-body);line-height:1.5;vertical-align:top}
.bl-body tbody tr:nth-child(even){background:var(--off-white)}
.bl-body tbody td:first-child{font-weight:700;color:var(--navy);text-align:center;width:44px}

/* end CTA */
.bl-cta-card{background:var(--navy);border-radius:20px;padding:44px 44px 40px;margin:52px 0 10px;color:#fff}
.bl-cta-card .k{font-family:var(--font-head),"Poppins",sans-serif;font-size:12px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--teal-bright);margin:0 0 14px}
.bl-cta-card h3{font-family:var(--font-head),"Poppins",sans-serif;font-weight:800;font-size:28px;line-height:1.12;margin:0 0 14px;color:#fff}
.bl-cta-card p{font-size:16px;line-height:1.6;color:var(--on-navy-70);margin:0 0 24px;max-width:520px}
.bl-cta-card a{display:inline-flex;align-items:center;gap:9px;background:var(--teal-bright);color:var(--navy)!important;font-family:var(--font-head),"Poppins",sans-serif;font-weight:700;font-size:15px;padding:14px 26px;border-radius:999px}
.bl-cta-card a:hover{background:#fff}

/* author + related */
.bl-author{display:flex;align-items:center;gap:14px;padding:30px 0;margin-top:20px;border-top:1px solid var(--border)}
.bl-author-badge{width:46px;height:46px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-head),"Poppins",sans-serif;font-weight:700;font-size:17px;flex-shrink:0}
.bl-author-name{font-family:var(--font-head),"Poppins",sans-serif;font-weight:700;font-size:15px;color:var(--navy)}
.bl-author-role{font-size:13px;color:var(--grey-mid)}
.bl-related{max-width:920px;margin:0 auto;padding:56px 32px 10px}
.bl-related h4{font-family:var(--font-head),"Poppins",sans-serif;font-weight:700;font-size:14px;letter-spacing:1.5px;text-transform:uppercase;color:var(--navy);margin:0 0 22px}
.bl-related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.bl-rel-card{display:block;padding:22px;border:1px solid var(--border);border-radius:14px;transition:border-color .15s,transform .15s}
.bl-rel-card:hover{border-color:var(--teal-bright);transform:translateY(-2px)}
.bl-rel-tag{font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--teal-dark)}
.bl-rel-title{font-family:var(--font-head),"Poppins",sans-serif;font-weight:700;font-size:16px;line-height:1.28;color:var(--navy);margin:9px 0 0}

/* ---- footer ---- */
.bl-footer{background:var(--dark-bg);color:var(--dark-text);margin-top:70px}
.bl-footer-in{max-width:1180px;margin:0 auto;padding:56px 32px 34px;display:flex;flex-wrap:wrap;gap:48px}
.bl-footer-brand{max-width:240px}
.bl-footer-brand img{height:30px;margin-bottom:16px}
.bl-footer-brand p{font-size:13px;color:var(--grey-mid);line-height:1.6;margin:0 0 18px}
.bl-footer-cols{display:flex;gap:56px;flex-wrap:wrap}
.bl-fcol{display:flex;flex-direction:column;gap:10px}
.bl-fcol .h{font-family:var(--font-head),"Poppins",sans-serif;font-size:11px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--grey-mid);margin-bottom:2px}
.bl-fcol a{font-size:13px;color:var(--dark-text)}
.bl-fcol a:hover{color:var(--teal-bright)}
.bl-footer-legal{max-width:1180px;margin:0 auto;padding:22px 32px 30px;border-top:1px solid rgba(255,255,255,0.08);font-size:11px;letter-spacing:1px;color:var(--grey-mid);text-transform:uppercase}

@media(max-width:720px){
  .bl-burger{display:flex}
  .bl-nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--border);padding:8px 0}
  .bl-nav.open{display:flex}
  .bl-nav a{padding:13px 32px;width:100%}
  .bl-nav .bl-cta{margin:12px 32px;justify-content:center}
  .bl-nav a:not(.bl-cta){font-size:14px;letter-spacing:.5px}
  .bl-nav a:not(.bl-cta)::after{display:none}
  .bl-header-in{position:relative}
  .bl-row{grid-template-columns:1fr;gap:8px}
  .bl-row-meta{padding-top:0}
  .bl-related-grid{grid-template-columns:1fr}
  .bl-tools{top:57px}
  .bl-cta-card{padding:32px 26px}
}