:root{
  --e-blue:#0E6FE8;          /* brand blue, a notch deeper so large fills read calmer */
  --e-blue-br:#0385FF;       /* the bright spark — used small: accents, glows, gradient stops */
  --e-blue-dk:#0257B8;
  --e-blue-soft:rgba(14,111,232,.07);
  --e-accent:#6D5EF6;        /* indigo-violet secondary — the second color the page was missing */
  --e-accent-dk:#5B4FE0;
  --e-accent-soft:rgba(109,94,246,.08);
  --e-cyan:#22D3EE;          /* bright cyan, gradient spark only */
  --e-tint:#F2F7FE;          /* faint slate-blue section wash (kills the all-white monochrome) */
  --e-tint-2:#F6F4FE;        /* faint violet wash for alternating bands */
  --e-heading:#0F172A;
  --e-subhead:#1E293B;
  --e-text:#0F1623;
  --e-page-bg:#F8FAFC;
  --e-dark:#0A0E1A;
  --e-success:#16A34A;  --e-success-bg:rgba(22,163,74,.12); --e-success-text:#166534;
  --e-danger:#EF4444;   --e-danger-bg:rgba(239,68,68,.12);  --e-danger-text:#991B1B;
  --e-warning:#F59E0B;  --e-warning-bg:rgba(245,158,11,.12);--e-warning-text:#92400E;
  --e-card:#FFFFFF;

  --e-hairline:#E2E8F0;
  --e-muted:#64748B;
}

/* --- primary blue family --- */
.text-primary{color:var(--e-blue)!important}
.btn-primary{background:var(--e-blue);border-color:var(--e-blue)}
.btn-primary:hover{background:var(--e-blue-dk);border-color:var(--e-blue-dk)}
.primary-band{background:var(--e-blue)}
.tile-primary-inverse{background-color:var(--e-blue)}
.tile-default .tile-main{color:var(--e-blue)}
a{color:var(--e-blue)}
a:hover{color:var(--e-blue-dk)}

/* hero blue gradient band (recolor of .blue-band / .blue-gradient-band) */
.blue-band{background:linear-gradient(to bottom,var(--e-blue) 0%,var(--e-blue-dk) 100%)}
.blue-gradient-band{background:linear-gradient(0deg,#fff 0%,#e7f1ff 20%,#f5f8fd 90%,#fff 100%)}

/* --- sky #0ea5e9 family used by icon-circle / faq-link / value-card --- */
.icon-circle{background-color:var(--e-blue-soft);color:var(--e-blue)}
.faq-link:hover{background-color:var(--e-blue-soft);border-color:rgba(3,133,255,.18)}
.faq-link:hover span{color:var(--e-blue)!important}
.btn-outline-custom{border-color:var(--e-blue);color:var(--e-blue)}
.btn-outline-custom:hover{background-color:var(--e-blue);color:#fff}

/* --- headings navy -> our ink --- */
h1{color:var(--e-heading)}
h2{color:var(--e-heading)}
h3,h4,h5,h6{color:var(--e-subhead)}
.group-title,footer .group-title{color:var(--e-heading)}

/* --- body ink + page background --- */
html,body{background-color:#fff!important}
/* FIX: BoomTax's site.css sets html,body{height:100%} (for their app shell) which locks
   page scroll on a long content page. Restore normal document flow + window scrolling. */
html,body{height:auto!important;min-height:100%;overflow-x:clip!important;overflow-y:visible!important}
body.boomtax-v5{padding-top:0!important}
body{color:var(--e-text)}
.page-bg{background-color:var(--e-page-bg)}

/* --- BoomTax-matching generous spacing rhythm (their .band = 75px 0, .gray/.white-band = 50px 0) --- */
section.blue-wave-bg,section.blue-wave-bg .container{padding-top:64px!important;padding-bottom:80px!important}
main > section h2{margin-top:0;margin-bottom:1.75rem}
main > section > .container{padding-left:24px;padding-right:24px}
.callout-notice{margin-top:28px!important;margin-bottom:28px!important}
.tile{margin-bottom:24px}
.row + .row,.row.justify-content-center{margin-top:16px}
/* breathing room between major content blocks */
main .container > * + h2{margin-top:16px}
table.table-modern{margin-top:28px}

/* --- uniform OPEN line-height on ALL content text (extend BoomTax's p{line-height:2em}
   beyond <p> to list items, table cells, callout/card text, FAQ answers, lede, etc.) --- */
main p, main li, main td, main th, main dd,
.callout-notice-content, .callout-notice-content p,
.tile p, .tile .tile-detail, .tile-detail,
.lede, .lede p, .feature-card p,
details, details p, details .answer, details div,
.hub-col a, .resource-lib a{line-height:2em !important}
/* keep tight, single-line UI chrome from over-spacing */
.byline, .eyebrow, .pill, .pill-success, .pill-danger, .pill-warning,
.callout-notice-title, .table-modern thead th, .btn, .small-cap, .badge{line-height:2 !important}

/* Restore the prompt-required typefaces. BoomTax's site.css ships a
   body.boomtax-v5 override (Inter / Space Grotesk) that out-specifies
   corporate.css; match its specificity here (font-family only — no
   change to size/line-height/letter-spacing scale). */
body.boomtax-v5,body.boomtax-app{font-family:"IBM Plex Sans",Arial,Helvetica,sans-serif}
body.boomtax-v5 h1,body.boomtax-v5 h2,body.boomtax-v5 h3,body.boomtax-v5 h4,body.boomtax-v5 h5,body.boomtax-v5 h6{font-family:"Bricolage Grotesque","Sora",sans-serif;letter-spacing:-.02em;font-weight:700}
body.boomtax-v5 h1,body.boomtax-v5 h2{font-weight:800}
body.boomtax-v5 h1{color:var(--e-heading)}

/* --- .highlight yellow -> blue swipe --- */
.highlight{background:linear-gradient(180deg,transparent 50%,rgba(3,133,255,.20) 50%)}
mark{background-image:linear-gradient(to right,rgba(3,133,255,.10),rgba(3,133,255,.30) 4%,rgba(3,133,255,.15))}

/* --- status callouts recolored to our families --- */
.callout-notice-info{background-color:var(--e-blue-soft);border-color:rgba(3,133,255,.25);border-left-color:var(--e-blue)}
.callout-notice-info .callout-notice-icon{color:var(--e-blue)}
.callout-notice-info .callout-notice-title{color:var(--e-blue-dk)}
.callout-notice-danger{background-color:var(--e-danger-bg);border-color:rgba(239,68,68,.3);border-left-color:var(--e-danger)}
.callout-notice-danger .callout-notice-icon{color:var(--e-danger)}
.callout-notice-danger .callout-notice-title{color:var(--e-danger-text)}
.callout-notice-success{background-color:var(--e-success-bg);border-color:rgba(22,163,74,.3);border-left-color:var(--e-success)}
.callout-notice-success .callout-notice-icon{color:var(--e-success)}
.callout-notice-success .callout-notice-title{color:var(--e-success-text)}
.callout-notice-warning{background-color:var(--e-warning-bg);border-color:rgba(245,158,11,.3);border-left-color:var(--e-warning)}
.callout-notice-warning .callout-notice-icon{color:var(--e-warning)}
.callout-notice-warning .callout-notice-title{color:var(--e-warning-text)}

/* pills recolored (keep BoomTax radius/padding/font-size) */
.pill-info{background-color:var(--e-blue-soft);color:var(--e-blue-dk);border-radius:30px;margin-left:5px;vertical-align:middle;display:inline-block;margin-bottom:5px;font-size:11px;font-weight:bold;padding:2px 10px}
.pill-danger{background-color:var(--e-danger-bg);color:var(--e-danger-text)}
.pill-success{background-color:var(--e-success-bg);color:var(--e-success-text)}
.pill-warning{background-color:var(--e-warning-bg);color:var(--e-warning-text)}

/* table-modern hover recolor */
.table-modern tbody tr:hover td{background-color:var(--e-blue-soft)}
.row-danger td{background-color:var(--e-danger-bg)!important}
.row-danger:hover td{background-color:rgba(239,68,68,.18)!important}

/* dark navy band (recolor of #0a2540) */
/* deep navy→indigo (darker, not flat black) with soft brand glows */
.dark-band{background:linear-gradient(125deg,#15233E 0%,#1A1E3C 52%,#211B3A 100%);color:#fff;position:relative;overflow:hidden}
.dark-band::before{content:"";position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(42% 80% at 86% 18%,rgba(61,158,255,.22),transparent 62%),
  radial-gradient(44% 80% at 8% 102%,rgba(155,140,255,.18),transparent 62%)}
.dark-band > *{position:relative;z-index:1}
.dark-band h2,.dark-band h3{color:#fff}

/* === DARK THEME (app.css dark tokens) === */
:root[data-theme="dark"]{
  --e-blue:#3D9EFF; --e-blue-br:#5AB0FF; --e-blue-dk:#7CC0FF; --e-blue-soft:rgba(61,158,255,.16);
  --e-accent:#9B8CFF; --e-accent-dk:#B3A6FF; --e-accent-soft:rgba(155,140,255,.16); --e-cyan:#5EEAF7;
  --e-tint:#141C2B; --e-tint-2:#181625;
  --e-heading:#F8FAFC; --e-subhead:#E2E8F0; --e-text:#E2E8F0;
  --e-page-bg:#0E131D; --e-dark:#11161F; --e-card:#161D2B; --e-hairline:rgba(148,163,184,.16);
  --e-success:#22C55E; --e-success-bg:rgba(34,197,94,.15); --e-success-text:#4ADE80;
  --e-danger:#F87171; --e-danger-bg:rgba(239,68,68,.15); --e-danger-text:#FCA5A5;
  --e-warning:#FBBF24; --e-warning-bg:rgba(251,191,36,.15); --e-warning-text:#FCD34D;
  --e-muted:#94A3B8;
}
[data-theme="dark"] html,[data-theme="dark"] body{background-color:#0E131D!important}
[data-theme="dark"] body{color:var(--e-text)}
[data-theme="dark"] .page-bg{background-color:#0E131D}
[data-theme="dark"] .bg-white{background-color:#0E131D!important}
[data-theme="dark"] .bg-light{background-color:#141B27!important}
[data-theme="dark"] .blue-wave-bg{background:#0E131D}
[data-theme="dark"] .gray-band{background-color:#121A26}
[data-theme="dark"] .white-band{background-color:#0E131D}
[data-theme="dark"] .table-modern tbody td,[data-theme="dark"] .table-modern tbody tr{background-color:transparent}
[data-theme="dark"] .table-modern tbody tr:hover td{background-color:rgba(3,133,255,.18)}
[data-theme="dark"] .row-danger td{background-color:rgba(239,68,68,.18)!important}
[data-theme="dark"] .blue-gradient-band{background:linear-gradient(0deg,#0A0E1A 0%,#11161F 40%,#0A0E1A 100%)}
[data-theme="dark"] h1,[data-theme="dark"] h2,[data-theme="dark"] h3,[data-theme="dark"] h4,[data-theme="dark"] h5,[data-theme="dark"] h6{color:var(--e-heading)}
[data-theme="dark"] h3,[data-theme="dark"] h4,[data-theme="dark"] h5,[data-theme="dark"] h6{color:var(--e-subhead)}
[data-theme="dark"] .tile,[data-theme="dark"] .tile-default,[data-theme="dark"] .card{background-color:#11161F;border-color:var(--e-hairline);color:var(--e-text)}
[data-theme="dark"] .tile-default:hover{background-color:#161B26}
[data-theme="dark"] .table-modern thead th{background-color:#11161F;color:#94A3B8;border-color:var(--e-hairline)}
[data-theme="dark"] .table-modern tbody td{border-color:var(--e-hairline);color:var(--e-text)}
[data-theme="dark"] .faq-link{background-color:transparent;color:var(--e-text)}
[data-theme="dark"] .text-muted,[data-theme="dark"] .text-secondary{color:var(--e-muted)!important}
[data-theme="dark"] .icon-circle{background-color:rgba(3,133,255,.18);color:#3D9EFF}
[data-theme="dark"] .callout-notice-info .callout-notice-content,
[data-theme="dark"] .callout-notice-danger .callout-notice-content,
[data-theme="dark"] .callout-notice-warning .callout-notice-content,
[data-theme="dark"] .callout-notice-success .callout-notice-content{color:#CBD5E1}
[data-theme="dark"] .author-card{background:#11161F!important;border-color:var(--e-hairline)!important}

/* ====== layout helpers (spacing/structure only — neutral, no BoomTax token override) ====== */
.eyebrow{font-family:"IBM Plex Sans",sans-serif;text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;font-weight:700;color:var(--e-blue)}
.byline{color:var(--e-muted);font-size:.9rem}
.flow-wrap{display:flex;align-items:stretch;justify-content:center;gap:0;flex-wrap:wrap}
.flow-node{flex:1 1 200px;max-width:240px}
.flow-arrow{display:flex;align-items:center;justify-content:center;color:var(--e-blue);font-size:1.8rem;padding:0 .25rem}
@media(max-width:767px){.flow-arrow{transform:rotate(90deg);padding:.5rem 0}}
.channels-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;align-items:stretch}
.channels-into{display:flex;justify-content:center;margin:.5rem 0;color:var(--e-blue);font-size:1.8rem}
@media(max-width:767px){.channels-grid{grid-template-columns:1fr}}
.code-block{position:relative;background:#0A0E1A;border-radius:14px;padding:20px 22px;overflow:auto}
.code-block code{font-family:"SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;font-size:.85rem;line-height:1.7;color:#E2E8F0;white-space:pre}

/* --- FIRE vs IRIS terminal comparison (BoomTax "Technical Changes" code section) --- */
.code-vs{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap;background:var(--e-blue-bg,rgba(3,133,255,.06));border-radius:20px;padding:30px;margin-top:28px}
.term{flex:1 1 330px;min-width:280px;background:#0A0E1A;border-radius:12px;overflow:hidden;box-shadow:0 12px 34px rgba(16,24,40,.20)}
.term-head{display:flex;align-items:center;gap:10px;padding:12px 16px;background:#141A28;border-bottom:1px solid rgba(255,255,255,.06)}
.term-dots{display:inline-flex;gap:6px}
.term-dots i{width:11px;height:11px;border-radius:50%;display:inline-block}
.dot-r{background:#ff5f57}.dot-y{background:#febc2e}.dot-g{background:#28c840}
.term-title{color:#cbd5e1;font-size:.8rem;font-weight:600;font-family:ui-monospace,Menlo,monospace}
.term-body{padding:18px 18px 8px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.82rem;line-height:1.85;white-space:pre;overflow:auto;color:#E2E8F0;line-height:1.85 !important}
.term-body .ruler{color:#475569}.term-body .amber{color:#f5a524}.term-body .blue{color:#5ab0ff}
.term-body .tok-tag{color:#5ab0ff}.term-body .tok-str{color:#7ee787}.term-body .tok-num{color:#ffd479}
.term-foot{padding:8px 16px 16px}
.term-pill{display:inline-block;background:rgba(148,163,184,.16);color:#cbd5e1;font-size:.66rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 12px;border-radius:50px;line-height:1.4 !important}
.term-pill.self{background:rgba(3,133,255,.24);color:#8ec5ff}
.vs-badge{flex:0 0 auto;width:46px;height:46px;border-radius:50%;background:#0A0E1A;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.8rem;font-family:"Bricolage Grotesque",sans-serif;margin:0 -10px;z-index:2;box-shadow:0 4px 14px rgba(16,24,40,.25);border:3px solid var(--e-page-bg,#f8fafc)}
.term .code-copy{position:absolute;top:9px;right:12px;z-index:3}
@media(max-width:640px){.vs-badge{margin:-12px 0}.code-vs{flex-direction:column}}
.code-copy{position:absolute;top:12px;right:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:8px;padding:4px 12px;font-size:.78rem;cursor:pointer;font-family:"IBM Plex Sans",sans-serif}
.code-copy:hover{background:rgba(255,255,255,.2)}
.tok-tag{color:#7DD3FC}.tok-attr{color:#FCD34D}
.role-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
@media(max-width:991px){.role-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:575px){.role-grid{grid-template-columns:1fr}}
.thumb{height:150px;border-radius:14px 14px 0 0;display:flex;align-items:center;justify-content:center;color:#fff;font-size:2.4rem}
.thumb-1{background:linear-gradient(135deg,#0385FF,#0270D9)}
.thumb-2{background:linear-gradient(135deg,#0270D9,#155DFC)}
.thumb-3{background:linear-gradient(135deg,#155DFC,#0385FF)}
.thumb-4{background:linear-gradient(135deg,#0258B5,#0385FF)}
.dark-toggle{position:fixed;top:14px;right:14px;z-index:2600;background:var(--e-dark);color:#fff;border:0;border-radius:30px;padding:8px 16px;font-size:.85rem;font-weight:600;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.2);font-family:"IBM Plex Sans",sans-serif}
.proof-badge{position:fixed;bottom:14px;left:14px;z-index:2000;background:var(--e-success);color:#fff;border-radius:8px;padding:6px 12px;font-size:.72rem;font-weight:700;font-family:"IBM Plex Sans",sans-serif;box-shadow:0 4px 14px rgba(0,0,0,.18)}
.step-num{width:34px;height:34px;border-radius:50%;background:var(--e-blue);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
details.faq{border:1px solid var(--e-hairline);border-radius:12px;margin-bottom:.75rem;background:var(--e-card)}
[data-theme="dark"] details.faq{background:#11161F;border-color:var(--e-hairline)}
details.faq summary{padding:1rem 1.25rem;cursor:pointer;font-weight:600;list-style:none;color:var(--e-heading);font-family:"IBM Plex Sans",sans-serif}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"\F282";font-family:"bootstrap-icons";float:right;transition:transform .2s; }

details.faq[open] summary::after{transform:rotate(90deg);}
/* open FAQ: tint the HEADER row only (same light-blue as table row hover) */
details.faq[open] summary{background:var(--e-blue-soft);border-radius:12px 12px 0 0;color:var(--e-blue-dk)}
details.faq .faq-body{padding:.9rem 1.25rem 1.1rem}

/* thinner resource cards — narrow the grid so items don't trail empty space at right */
#resource-library .row{max-width:840px;margin-left:auto;margin-right:auto}

/* ===== Closing CTA band (under FAQs) — animated color gradient + bold heading ===== */
.cta-final{position:relative;overflow:hidden;padding-top:92px!important;padding-bottom:92px!important;
  background:linear-gradient(120deg,var(--e-blue) 0%,var(--e-accent) 50%,var(--e-cyan) 100%)!important;
  background-size:220% 220%;animation:cta-pan 9s ease-in-out infinite}
@keyframes cta-pan{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
.cta-final::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  top:-180px;left:-90px;pointer-events:none;
  background:radial-gradient(circle,rgba(255,255,255,.20),transparent 70%);animation:cta-float 12s ease-in-out infinite}
.cta-final::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  bottom:-170px;right:-70px;pointer-events:none;
  background:radial-gradient(circle,rgba(34,211,238,.30),transparent 70%);animation:cta-float 15s ease-in-out infinite reverse}
@keyframes cta-float{0%,100%{transform:translate(0,0)}50%{transform:translate(22px,-20px)}}
.cta-final .container{position:relative;z-index:1}
.cta-final h2{font-size:clamp(2rem,4.6vw,3.1rem);font-weight:800;letter-spacing:-.022em;line-height:1.12;
  text-shadow:0 6px 26px rgba(8,17,40,.30),0 2px 5px rgba(8,17,40,.20)}
.cta-final p{font-size:1.08rem;text-shadow:0 2px 8px rgba(8,17,40,.18)}
.cta-final .btn-light{box-shadow:0 12px 30px -8px rgba(8,17,40,.4);transition:transform .2s,box-shadow .2s}
.cta-final .btn-light:hover{transform:translateY(-3px);box-shadow:0 18px 40px -10px rgba(8,17,40,.5)}

/* colored wash behind the glass cards so the translucency reads */
#resource-library{background:
  radial-gradient(55% 45% at 12% 4%,rgba(14,111,232,.13),transparent 62%),
  radial-gradient(50% 45% at 92% 96%,rgba(109,94,246,.13),transparent 62%),
  var(--e-tint)!important}
[data-theme="dark"] #resource-library{background:
  radial-gradient(55% 45% at 12% 4%,rgba(61,158,255,.14),transparent 62%),
  radial-gradient(50% 45% at 92% 96%,rgba(155,140,255,.14),transparent 62%),
  #121A26!important}

/* ===== Resource Library — real visible cards, uniform height, tight items ===== */
.hub-card{display:flex;flex-direction:column;
  background:rgba(255,255,255,.55);backdrop-filter:blur(16px) saturate(165%);-webkit-backdrop-filter:blur(16px) saturate(165%);
  border:1px solid rgba(255,255,255,.65);border-radius:16px;padding:26px 24px;height:100%;min-height:440px;
  box-shadow:0 10px 30px -12px rgba(15,23,42,.12),0 3px 6px -4px rgba(15,23,42,.06);
  transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s,border-color .25s}
.hub-card:hover{transform:translateY(-4px);border-color:rgba(14,111,232,.40);
  box-shadow:0 22px 44px -16px rgba(15,23,42,.20),0 4px 10px -6px rgba(15,23,42,.10)}
[data-theme="dark"] .hub-card{background:rgba(30,39,56,.42);border-color:rgba(148,163,184,.20)}
.hub-card h5{font-family:"Bricolage Grotesque","Sora",sans-serif;color:var(--e-heading);
  font-size:1.05rem;margin:0 0 8px;padding-bottom:12px;border-bottom:1px solid var(--e-hairline)}
/* tap-friendly rows: 44px min (iOS), comfortable line-height — same card padding rhythm */
.hub-card .faq-link{display:flex;align-items:center;min-height:44px;line-height:2 !important;
  padding:4px 10px;margin:0 -8px;border-radius:8px;color:var(--e-subhead);font-size:.93rem;
  transition:background .15s,color .15s}
.hub-card .faq-link span{line-height:2 !important}
.hub-card .faq-link:hover{background:var(--e-blue-soft)}
.hub-card .faq-link:hover span{color:var(--e-blue)!important}


/* ====== NEW components mined from BoomTax refs — recolor + structural only ====== */
/* "In This Story" boxed TOC (BoomTax blog card + arrow-bulleted link list) */
.story-toc{background:var(--e-card);border:1px solid var(--e-hairline);border-radius:16px;padding:26px 30px;box-shadow:0 10px 30px -10px rgba(15,23,42,.08),0 4px 6px -4px rgba(15,23,42,.04)}
[data-theme="dark"] .story-toc{background:#11161F;border-color:var(--e-hairline)}
.story-toc-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.story-toc-head i{color:var(--e-blue);font-size:1.15rem}
.story-toc-head h2{margin:0 !important;font-size:1.25rem}
.story-toc-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px 32px}
@media(max-width:640px){.story-toc-grid{grid-template-columns:1fr}}
.story-toc-grid a{display:flex;align-items:flex-start;gap:10px;padding:7px 0;color:var(--e-subhead);text-decoration:none;border-bottom:1px dashed transparent}
.story-toc-grid a::before{content:"\F285";font-family:"bootstrap-icons";color:var(--e-blue);font-size:.9rem;line-height:2 !important;flex-shrink:0}
.story-toc-grid a:hover{color:var(--e-blue)}
.story-toc-grid a:hover span{text-decoration:underline}
.story-toc-grid a.toc-active{color:var(--e-accent);font-weight:600}
.story-toc-grid a.toc-active::before{color:var(--e-accent)}

/* "Part of our IRS IRIS Resource Center" boxed reference (BoomTax bg-light border-start) */
.resource-ref{background:var(--e-blue-soft);border-left:4px solid var(--e-blue);border-radius:10px;padding:12px 18px;font-size:.92rem}
[data-theme="dark"] .resource-ref{background:rgba(3,133,255,.12)}
.resource-ref i{color:var(--e-blue)}
.resource-ref a{font-weight:700}

/* Pull-quote — clean modern callout, NO serif/italic (IBM Plex Sans, upright) */
.pull-quote{position:relative;border:0;border-left:4px solid var(--e-accent);
  background:linear-gradient(100deg,var(--e-accent-soft),var(--e-blue-soft));
  border-radius:14px;padding:26px 30px 26px 60px;margin:36px 0;
  font-family:"IBM Plex Sans",sans-serif;font-style:normal;font-weight:600;
  font-size:1.2rem;color:var(--e-heading);line-height:1.65 !important}
.pull-quote::before{content:"\201C";position:absolute;top:4px;left:18px;
  font-family:Georgia,serif;font-size:3.2rem;line-height:1;color:var(--e-accent);opacity:.34}
[data-theme="dark"] .pull-quote{color:var(--e-heading)}
.pull-quote cite{display:block;margin-top:12px;font-family:"IBM Plex Sans",sans-serif;
  font-style:normal;font-weight:700;font-size:.78rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--e-accent)}

/* Key-dates timeline (BoomTax table-modern + vertical rail enhancement) */
.timeline{list-style:none;margin:28px 0 0;padding:0;position:relative}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--e-blue),var(--e-blue-soft))}
.timeline li{position:relative;padding:0 0 22px 38px}
.timeline li::before{content:"";position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;background:var(--e-card);border:3px solid var(--e-blue);box-shadow:0 0 0 4px var(--e-blue-soft)}
.timeline li.is-critical::before{border-color:var(--e-danger);box-shadow:0 0 0 4px var(--e-danger-bg)}
[data-theme="dark"] .timeline li::before{background:#11161F}
.timeline .t-date{font-family:"Bricolage Grotesque","Sora",sans-serif;font-weight:800;color:var(--e-heading);font-size:.95rem;letter-spacing:-.01em}
.timeline .t-event{display:block;color:var(--e-text);line-height:2 !important}
.timeline li.is-critical .t-date{color:var(--e-danger-text)}

/* BoomTax-Advantage soft-sell benefit cards */
.advantage-card{background:var(--e-card);border:1px solid var(--e-hairline);border-radius:16px;padding:26px 24px;height:100%;box-shadow:0 10px 30px -10px rgba(15,23,42,.07),0 4px 6px -4px rgba(15,23,42,.04)}
[data-theme="dark"] .advantage-card{background:#11161F;border-color:var(--e-hairline)}
.advantage-card .icon-circle{margin:0 auto 14px}
.advantage-reassure{text-align:center;margin-top:8px;color:var(--e-muted);font-size:.95rem}
.advantage-reassure i{color:var(--e-success)}

/* ===== Reveal-on-scroll — transition-based, clearly visible motion =====
   (replaces BoomTax's 0.3s opacity blip; JS toggles .is-in). Direction comes
   from data-reveal; per-item delay is set inline by JS for a stagger cascade. */
.reveal{opacity:0;transform:translateY(28px);
  transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);
  will-change:opacity,transform}
.reveal[data-reveal="slide"]{transform:translateX(-46px)}
.reveal[data-reveal="bounce"]{transform:scale(.84)}
.reveal.is-in{opacity:1;transform:none}

/* ===== Reading-progress bar (fixed top, fills with scroll) ===== */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:3000;
  background:linear-gradient(90deg,var(--e-blue),var(--e-accent) 55%,var(--e-cyan));
  box-shadow:0 0 12px rgba(14,111,232,.55);transition:width .08s linear}

/* ===== Living hero background — animated canvas + drifting aurora ===== */
.hero-wrap{position:relative;overflow:hidden;isolation:isolate}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.9}
.hero-aurora{position:absolute;inset:-25% -12% -25% -12%;z-index:0;pointer-events:none;
  background:
    radial-gradient(38% 48% at 16% 22%,rgba(14,111,232,.20),transparent 70%),
    radial-gradient(36% 44% at 84% 26%,rgba(109,94,246,.18),transparent 70%),
    radial-gradient(46% 52% at 62% 88%,rgba(34,211,238,.12),transparent 70%);
  filter:blur(8px);animation:aurora-drift 20s ease-in-out infinite alternate}
.hero-wrap > .blue-gradient-band{position:relative;z-index:1;background:transparent!important}
@keyframes aurora-drift{
  0%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(2%,-2%,0) scale(1.06)}
  100%{transform:translate3d(-2%,-3%,0) scale(1.1)}}
[data-theme="dark"] .hero-aurora{
  background:
    radial-gradient(38% 48% at 16% 22%,rgba(61,158,255,.22),transparent 70%),
    radial-gradient(36% 44% at 84% 26%,rgba(155,140,255,.20),transparent 70%),
    radial-gradient(46% 52% at 62% 88%,rgba(94,234,247,.12),transparent 70%)}

/* ===== Count-up stat — big gradient numeral ===== */
.stat-num{font-family:"Bricolage Grotesque","Sora",sans-serif;font-weight:800;
  font-size:clamp(3.6rem,10vw,5.8rem);line-height:1;letter-spacing:-.03em;display:inline-block;
  background:linear-gradient(118deg,var(--e-blue),var(--e-accent) 58%,var(--e-cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}

/* ===== Alternating section washes (kill the all-white monochrome) ===== */
.gray-band{background-color:var(--e-tint)!important}
.tint-violet{background-color:var(--e-tint-2)!important}
section.accent-top{position:relative}
section.accent-top::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:64px;height:4px;border-radius:0 0 4px 4px;
  background:linear-gradient(90deg,var(--e-blue),var(--e-accent))}

/* ===== Interactive FIRE↔IRIS code mapping (hover a line, its match lights up) ===== */
.code-vs.interactive .term-body .cl{border-radius:4px;cursor:pointer;
  transition:background .15s ease,box-shadow .15s ease;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.code-vs.interactive .term-body .cl.lit{background:rgba(90,176,255,.30);
  box-shadow:0 0 0 1px rgba(90,176,255,.55);color:#fff}
.code-map-hint{text-align:center;font-size:.82rem;color:var(--e-muted);margin-top:16px;
  font-family:"IBM Plex Sans",sans-serif}
.code-map-hint i{color:var(--e-accent)}
.code-map-hint kbd{background:var(--e-accent-soft);color:var(--e-accent);border:0;border-radius:5px;
  padding:1px 7px;font-family:"IBM Plex Sans",sans-serif;font-size:.78rem;font-weight:600}

/* accent recolor for the brighter spark in small spots */
.eyebrow{color:var(--e-blue)}
.timeline li.is-critical::before{border-color:var(--e-danger)}
.icon-circle{background:linear-gradient(135deg,var(--e-blue-soft),var(--e-accent-soft));color:var(--e-blue)}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1!important;transform:none!important;transition:none!important}
  .bi-chevron-right{animation:none!important}
  .tile{transition:none!important}
  .hero-aurora{animation:none!important}
  .read-progress{transition:none!important}
  .cta-final,.cta-final::before,.cta-final::after{animation:none!important}
}

/* ============================================================
   POST TEMPLATE — editorial article layout (distinct from the hub).
   Reuses the shared design system above; adds article grid +
   sticky reading sidebar + breadcrumb/byline/author.
   ============================================================ */
.post-hero{background:var(--e-tint);border-bottom:1px solid var(--e-hairline);padding:46px 0 38px}
[data-theme="dark"] .post-hero{background:#121A26;border-bottom-color:var(--e-hairline)}
.post-hero .container{max-width:1140px}
.post-breadcrumb{font-size:.82rem;color:var(--e-muted);margin-bottom:16px;display:flex;align-items:center;flex-wrap:wrap}
.post-breadcrumb a{color:var(--e-muted);text-decoration:none}
.post-breadcrumb a:hover{color:var(--e-blue)}
.post-breadcrumb i{font-size:.66rem;margin:0 8px;opacity:.55}
.post-h1{font-family:"Bricolage Grotesque","Sora",sans-serif;font-weight:800;letter-spacing:-.025em;
  font-size:clamp(2.05rem,4.4vw,3.1rem);line-height:1.08;color:var(--e-heading);margin:14px 0 18px;max-width:20ch}
.post-deck{font-size:1.16rem;line-height:1.7;color:var(--e-subhead);max-width:690px;margin:0}
.post-byline{display:flex;align-items:center;gap:14px;margin-top:26px;flex-wrap:wrap}
.post-avatar{width:46px;height:46px;border-radius:50%;flex-shrink:0;color:#fff;font-weight:700;
  font-family:"Bricolage Grotesque",sans-serif;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--e-blue),var(--e-accent))}
.post-byline-meta{font-size:.9rem;line-height:1.45}
.post-byline-meta .nm{font-weight:600;color:var(--e-heading)}
.post-byline-meta .sub{color:var(--e-muted)}
.post-byline-tags{display:flex;gap:8px;margin-left:auto;flex-wrap:wrap}
.post-tag{font-size:.74rem;font-weight:600;padding:5px 12px;border-radius:30px;background:var(--e-blue-soft);color:var(--e-blue-dk)}
@media(max-width:575px){.post-byline-tags{margin-left:0;width:100%}}

.post-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:60px;max-width:1140px;margin:0 auto;padding:44px 24px 24px}
.post-main{max-width:760px;min-width:0}
@media(max-width:991px){.post-grid{grid-template-columns:1fr;gap:0;padding-top:30px}.post-aside{display:none}}

.post-aside{position:relative}
.post-toc{position:sticky;top:90px;max-height:calc(100vh - 120px);overflow:auto;scrollbar-width:thin}
.post-toc-head{font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--e-muted);margin:0 0 12px 14px}
.post-toc-list{display:flex;flex-direction:column;gap:1px;border-left:2px solid var(--e-hairline);padding-left:14px}
.post-toc-list a{position:relative;font-size:.83rem;line-height:1.4;color:var(--e-muted);text-decoration:none;
  padding:6px 10px;border-radius:8px;transition:color .15s,background .15s}
.post-toc-list a:hover{color:var(--e-blue);background:var(--e-blue-soft)}
.post-toc-list a.toc-active{color:var(--e-accent);font-weight:600;background:var(--e-accent-soft)}
.post-toc-list a.toc-active::before{content:"";position:absolute;left:-16px;top:50%;transform:translateY(-50%);
  width:3px;height:64%;border-radius:3px;background:linear-gradient(var(--e-blue),var(--e-accent))}

/* reading-column typography */
.post-main h2{font-family:"Bricolage Grotesque","Sora",sans-serif;font-weight:800;letter-spacing:-.02em;
  font-size:1.72rem;line-height:1.2;color:var(--e-heading);margin:46px 0 14px;scroll-margin-top:88px}
.post-main h2:first-of-type{margin-top:6px}
.post-main h3{font-family:"Bricolage Grotesque","Sora",sans-serif;font-weight:700;font-size:1.18rem;
  margin:26px 0 8px;color:var(--e-subhead)}
.post-main p,.post-main li{font-size:1.05rem;line-height:2 !important;color:var(--e-text)}
.post-main ul,.post-main ol{margin:0 0 18px;padding-left:1.25em}
.post-main li{margin-bottom:4px}
.post-lead{font-size:1.16rem!important;color:var(--e-subhead)!important}

/* mobile-only inline TOC (sidebar hidden < 992) */
.post-mobile-toc{display:none;margin:0 0 28px}
@media(max-width:991px){.post-mobile-toc{display:block}}

/* numbered step rows */
.step-row{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--e-hairline)}
.step-row:last-child{border-bottom:0}
.step-row .step-body{flex:1;min-width:0}
.step-row .step-body h3{margin:0 0 4px}
.step-row .step-body p{margin:0}
.step-pill{display:inline-block;margin-top:8px;font-size:.72rem;font-weight:700;letter-spacing:.04em;
  text-transform:uppercase;padding:4px 11px;border-radius:30px;background:var(--e-blue-soft);color:var(--e-blue-dk)}

/* author box + disclaimer */
.author-box{display:flex;gap:18px;align-items:flex-start;background:var(--e-card);border:1px solid var(--e-hairline);
  border-radius:16px;padding:22px 24px;margin:42px 0 8px}
[data-theme="dark"] .author-box{background:#161D2B}
.author-box .post-avatar{width:54px;height:54px;font-size:1.15rem}
.author-box .nm{font-weight:700;color:var(--e-heading)}
.author-box .role{font-size:.85rem;color:var(--e-muted);margin-bottom:6px}
.author-box p{font-size:.92rem!important;line-height:1.7!important;margin:0;color:var(--e-text)}
.post-disclaimer{font-size:.84rem;color:var(--e-muted);line-height:1.7;border-top:1px solid var(--e-hairline);padding-top:18px;margin-top:18px}

/* related-coverage cards */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1100px;margin:0 auto}
@media(max-width:767px){.rel-grid{grid-template-columns:1fr}}
.rel-card{display:block;background:var(--e-card);border:1px solid var(--e-hairline);border-radius:16px;overflow:hidden;
  text-decoration:none;transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s,border-color .25s}
[data-theme="dark"] .rel-card{background:#161D2B}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(14,111,232,.4);box-shadow:0 20px 40px -16px rgba(15,23,42,.22)}
.rel-thumb{height:84px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.7rem}
.rel-card .rel-body{padding:16px 18px}
.rel-eyebrow{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--e-muted)}
.rel-card h4{font-size:1.02rem;margin:4px 0 0;color:var(--e-heading);font-family:"Bricolage Grotesque",sans-serif;font-weight:700}


/* ---- Public-site supplements (blocks blog.css didn't originally cover) -------------------- */
/* env-banner: verification strip under the byline */
.env-banner{display:inline-flex;align-items:center;gap:6px;margin-top:14px;padding:7px 13px;border-radius:8px;
  font-size:.82rem;font-weight:600;color:var(--e-blue-dk,#0257B8);
  background:color-mix(in oklab,var(--e-blue,#0E6FE8) 9%,transparent);
  border:1px solid color-mix(in oklab,var(--e-blue,#0E6FE8) 22%,transparent)}
.env-banner .bi{font-size:.95rem}

/* inline-cta: mid-article call-to-action band */
.inline-cta{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin:28px 0;padding:22px 26px;border-radius:14px;
  background:color-mix(in oklab,var(--e-blue,#0E6FE8) 6%,transparent);
  border:1px solid color-mix(in oklab,var(--e-blue,#0E6FE8) 18%,transparent)}
.inline-cta .ic-body h4{margin:0 0 4px;font-size:1.08rem;font-weight:700;color:var(--e-heading,#0b1220);
  font-family:"Bricolage Grotesque",sans-serif}
.inline-cta .ic-body p{margin:0;color:var(--e-muted,#54607a);font-size:.92rem}
.inline-cta .btn{white-space:nowrap}

/* spec-table: monospace, tighter technical tables (XML/field specs) */
.spec-table{font-variant-numeric:tabular-nums}
.spec-table code,.spec-table td:first-child{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.86em}

/* ---- /blog index cards --------------------------------------------------------------------- */
.blog-index .post-hero{padding-bottom:26px}
.blog-card-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
.blog-card-grid .rel-card{display:flex;flex-direction:column}
.blog-card-deck{margin:8px 0 0;font-size:.9rem;line-height:1.55}
.blog-card-meta{display:flex;align-items:center;gap:9px;margin-top:14px;font-size:.8rem;color:var(--e-muted,#54607a)}
.post-avatar.sm{width:26px;height:26px;font-size:.72rem}