/* =====================================================================
   NumbrWiz component layer — loaded AFTER each page's legacy stylesheet.
   Visual-only harmonisation of the shared legacy components (colour, type,
   borders, elevation, states). No layout/grid/display rules here, so the
   bespoke calculator layouts and scripts keep working unchanged.
   ===================================================================== */

/* Typography: display face for headings inside migrated content */
.main-content h1, .main-content h2, .main-content h3,
.calc-card-main h2, .info-block h2, .section-header h2, .section-title { font-family: var(--font-display); }
.main-content h1, .main-content h2 { letter-spacing: -0.02em; }

/* Legacy page hero (calculators, info pages) -> branded soft panel */
.main-content > .hero, .main-content > .hero-about, .main-content > section.hero {
  position: relative;
  margin-top: 16px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background:
    radial-gradient(600px 180px at 100% 0%, rgba(57, 188, 68, 0.10), transparent 70%),
    radial-gradient(600px 200px at 0% 100%, rgba(31, 111, 191, 0.10), transparent 70%),
    var(--card-bg);
  box-shadow: var(--shadow-sm);
  padding-left: clamp(16px, 4vw, 40px);
  padding-right: clamp(16px, 4vw, 40px);
}
.main-content > .hero::before, .main-content > .hero-about::before {
  content: ''; position: absolute; left: 24px; right: 24px; top: -1px; height: 3px; border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--nw-navy-600), var(--nw-green-400));
}
.main-content > .hero h1, .main-content > .hero-about h1 { color: var(--secondary); font-weight: 800; }
.trust-badge-icon, .trust-badge .svg-icon { color: var(--nw-green-600); }
.dark .trust-badge-icon, .dark .trust-badge .svg-icon { color: var(--nw-green-300); }

/* Calculator panel */
.calc-card-main {
  background: linear-gradient(90deg, var(--nw-navy-600), var(--nw-green-400)) top / 100% 4px no-repeat, var(--card-bg);
  border-color: var(--border);
  box-shadow: var(--shadow-md);
}
.calc-card-main h2 .svg-icon { color: var(--nw-green-600) !important; }

/* Primary action = brand green; secondary stays neutral */
.btn-primary, .btn.btn-primary, button.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 16px -6px rgba(26, 127, 55, 0.55);
}
.btn-primary:hover, .btn.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 8px 20px -6px rgba(26, 127, 55, 0.6); }
.btn-primary:focus-visible { outline: 2px solid var(--nw-green-400); outline-offset: 2px; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn:focus-visible, .btn-sm:focus-visible, .unit-toggle-btn:focus-visible, .mode-toggle-btn:focus-visible,
.preset-btn:focus-visible, .faq-question:focus-visible, .paa-question:focus-visible { outline: 2px solid var(--nw-navy-500); outline-offset: 2px; }

/* Inputs */
.input-group input:focus, .input-group select:focus, .input-group textarea:focus,
.calc-card-main input:focus, .calc-card-main select:focus, .calc-card-main textarea:focus {
  border-color: var(--primary);
  box-shadow: var(--focus-ring);
}
.unit-toggle-btn.active, .mode-toggle-btn.active, .preset-btn.active, .preset-active {
  background: var(--nw-navy-800);
  border-color: var(--nw-navy-800);
  color: #fff;
}
.dark .unit-toggle-btn.active, .dark .mode-toggle-btn.active, .dark .preset-btn.active, .dark .preset-active {
  background: var(--nw-navy-500); border-color: var(--nw-navy-500); color: #fff;
}

/* Results */
.result-card-highlight { border-color: var(--nw-green-200); background: linear-gradient(135deg, var(--nw-green-50), var(--primary-50)); }
.dark .result-card-highlight { border-color: #1b4d2a; background: linear-gradient(135deg, #0f2a1a, var(--primary-50)); }
.formula-display, .formula-box, .step-formula { border-left: 3px solid var(--nw-green-400); }

/* Content blocks */
.info-block, .faq-item, .paa-item, .glossary-card, .related-card, .eeat-section { border-color: var(--border); }
.faq-item.open, .paa-item.open { border-color: var(--nw-navy-300); box-shadow: var(--shadow-md); }
.dark .faq-item.open, .dark .paa-item.open { border-color: var(--nw-navy-600); }
.faq-item.open .faq-arrow, .paa-item.open .paa-arrow { color: var(--accent); }
.related-card:hover { border-color: var(--nw-navy-300); }
.related-card-icon, .related-mini-icon, .calc-card-icon { color: var(--nw-green-600); }
.dark .related-card-icon, .dark .related-mini-icon, .dark .calc-card-icon { color: var(--nw-green-300); }

/* Table of contents */
.toc-link.toc-active { color: var(--secondary); border-left-color: var(--nw-green-400); background: var(--primary-50); }

/* Links inside long-form content */
.info-block a:not(.btn):not(.related-card), .content-card a:not(.btn), .faq-answer a, .paa-answer a { color: var(--primary); text-underline-offset: 2px; }

/* Ads: when no ad unit is configured for a slot, collapse the placeholder box */
.nw-ads-off .ad-container:not([data-loaded="true"]), .ad-container.nw-ad-empty { display: none !important; }
.ad-container[data-loaded="true"] { border-style: solid; }

/* Legacy bug fix: display:flex on the placeholder collapsed the spaces around <strong>. */
.result-placeholder { display: block; }

/* No ad units configured: give the calculator the space the empty ad column took. */
@media (min-width: 1025px) {
  .nw-ads-off .page-layout { grid-template-columns: var(--toc-width) minmax(0, 1fr); }
  .nw-ads-off .page-layout > .ads-sidebar { display: none; }
}
.main-content > .hero + .page-layout, .main-content > .hero + .ad-container + .page-layout { margin-top: 24px; }

/* Legacy category/home pages padded <body> for their old position:fixed header. */
body.nw-page { padding-top: 0; }

/* Phones: bring the calculator closer to the top (copy stays in the DOM for SEO / screen readers). */
@media (max-width: 640px) {
  .nw-page--calculator .main-content > .hero { padding-top: 20px; padding-bottom: 18px; }
  .nw-page--calculator .main-content > .hero .hero-sub {
    display: -webkit-box; -webkit-line-clamp: 3; line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 0;
  }
  .nw-page--calculator .main-content > .hero .trust-badges { display: none; }
  .nw-page--calculator .main-content > .hero + .page-layout,
  .nw-page--calculator .main-content > .hero + .ad-container + .page-layout { margin-top: 12px; }
  .nw-page--calculator .page-layout .content-main > .section:first-child { padding-top: 8px; }
}

/* Contrast: legacy demo buttons/badges painted white text on var(--primary); in dark mode --primary is a
   light text colour (2.3:1). Give them the brand CTA / navy treatment in both themes. */
.featured-calc-demo .btn, .featured-calc .btn, .demo-input-row ~ .btn { background: var(--accent); color: #fff; border-color: transparent; }
.featured-calc-demo .btn:hover, .featured-calc .btn:hover { background: var(--accent-hover); }
.dark .badge { background: var(--nw-navy-600); color: #fff; }
.formula-box p { opacity: 1; }

/* Tables that were not wrapped by the original markup scroll inside their own region on small screens. */
.nw-table-scroll { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.nw-table-scroll:focus-visible { outline: 2px solid var(--nw-navy-500); outline-offset: 2px; }

/* Dark-mode contrast for page-specific colour variables / components (WCAG AA, see docs/QA-REPORT.md). */
.dark {
  --pass-color: #5fd06a; --fail-color: #f87171;
  --color-red-socket: #f87171; --color-green-socket: #5fd06a; --color-blue-socket: #6cb2f0;
}
.dark .load-type-btn.active:not(.leading-active) { color: #0b1526; }
.dark .scaling-none { color: var(--nw-slate-600); }

/* ===================== 4.0: rich content, blog, ads, consent ===================== */
/* Editor presentation classes (the sanitizer allows only these) */
.nw-prose h1 { font: 800 1.8rem/1.2 var(--font-display); color: var(--secondary); margin: 1.6em 0 0.6em; }
.nw-prose h5, .nw-prose h6 { font-weight: 700; margin: 1.2em 0 0.4em; }
.nw-prose h6 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-secondary); }
.nw-align-left { text-align: left; } .nw-align-center { text-align: center; } .nw-align-right { text-align: right; } .nw-align-justify { text-align: justify; }
.nw-indent-1 { margin-left: 2em !important; } .nw-indent-2 { margin-left: 4em !important; } .nw-indent-3 { margin-left: 6em !important; }
.nw-indent-4 { margin-left: 8em !important; } .nw-indent-5 { margin-left: 10em !important; } .nw-indent-6 { margin-left: 12em !important; }
@media (max-width: 640px) { [class*="nw-indent-"] { margin-left: 1.25em !important; } }
.nw-prose figure { margin: 1.4em 0; }
.nw-prose figcaption { font-size: 0.88rem; color: var(--text-secondary); margin-top: 6px; text-align: center; }
.nw-figure--center { text-align: center; } .nw-figure--center img { margin: 0 auto; }
.nw-figure--wide img { width: 100%; }
@media (min-width: 700px) {
  .nw-figure--left { float: left; max-width: 46%; margin: 0.3em 1.4em 1em 0; }
  .nw-figure--right { float: right; max-width: 46%; margin: 0.3em 0 1em 1.4em; }
}
.nw-prose::after { content: ""; display: table; clear: both; }
.nw-img--small { max-width: 240px !important; } .nw-img--medium { max-width: 420px !important; } .nw-img--large { max-width: 640px !important; } .nw-img--full { width: 100%; }
.nw-prose table.nw-table--striped tbody tr:nth-child(odd) { background: var(--surface-2); }
.nw-prose thead th { background: var(--surface-2); }
.nw-callout { border: 1px solid var(--border); border-left: 4px solid var(--primary); background: var(--primary-50); padding: 12px 16px; border-radius: 8px; }
.nw-callout--tip { border-left-color: var(--accent); background: var(--nw-green-50, #ecf9ee); }
.nw-callout--warning { border-left-color: var(--warning); background: var(--warning-bg); }
html.dark .nw-callout { background: var(--surface-2); }

/* Blog */
.nw-blog { padding-bottom: 48px; }
.nw-preview-banner { max-width: 860px; margin: 16px auto 0; padding: 10px 14px; border-radius: 8px; background: var(--warning-bg); color: var(--text); font-weight: 600; }
.nw-post { max-width: 760px; margin: 0 auto; padding: 28px 0 8px; }
.nw-post__kicker { margin: 0 0 8px; font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.nw-post__kicker a { color: var(--accent-hover, var(--accent)); text-decoration: none; }
.nw-post__title { margin: 0 0 12px; font: 800 clamp(1.75rem, 1.2rem + 2.2vw, 2.6rem)/1.15 var(--font-display); letter-spacing: -0.02em; color: var(--secondary); overflow-wrap: anywhere; }
.nw-post__lead { margin: 0 0 14px; font-size: 1.15rem; line-height: 1.6; color: var(--text-secondary); }
.nw-post__meta { display: flex; flex-wrap: wrap; gap: 4px 16px; margin: 0 0 20px; font-size: 0.88rem; color: var(--text-muted); }
.nw-post__meta a { color: inherit; font-weight: 600; }
.nw-post__hero { margin: 0 0 24px; }
.nw-post__hero img { display: block; width: 100%; height: auto; border-radius: 14px; }
.nw-post__hero figcaption { font-size: 0.85rem; color: var(--text-muted); margin-top: 6px; }
.nw-post__toc { margin: 0 0 24px; padding: 14px 18px; border: 1px solid var(--border); border-radius: 12px; background: var(--card-bg); }
.nw-post__toc h2 { margin: 0 0 6px; font: 700 1rem/1.3 var(--font-display); color: var(--secondary); }
.nw-post__toc ol { margin: 0; padding-left: 1.3em; line-height: 1.8; }
.nw-post__toc a { color: var(--primary); }
.nw-post__faq { margin: 32px 0 0; }
.nw-post__faq h2 { font: 700 1.5rem/1.25 var(--font-display); color: var(--secondary); }
.nw-faq { border: 1px solid var(--border); border-radius: 10px; margin: 0 0 10px; background: var(--card-bg); }
.nw-faq summary { cursor: pointer; padding: 12px 16px; font-weight: 700; list-style-position: inside; }
.nw-faq summary:focus-visible { outline: 3px solid var(--focus-ring, var(--primary)); outline-offset: 2px; }
.nw-faq .nw-prose { padding: 0 16px 6px; }
.nw-post__foot { margin-top: 28px; }
.nw-tags { list-style: none; margin: 0 0 20px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.nw-tags a, .nw-chips a { display: inline-block; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border); color: var(--text); text-decoration: none; font-size: 0.88rem; min-height: 32px; }
.nw-tags a:hover, .nw-chips a:hover { border-color: var(--primary); color: var(--primary); }
.nw-author { display: flex; gap: 14px; align-items: flex-start; padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--card-bg); }
.nw-author__img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; flex: 0 0 64px; }
.nw-author__name { margin: 0 0 4px; font-weight: 700; }
.nw-author p { margin: 0; }
.nw-related { max-width: var(--max-width); margin: 40px auto 0; }
.nw-related h2 { font: 700 1.4rem/1.3 var(--font-display); color: var(--secondary); }
.nw-bloghead { max-width: 860px; padding: 28px 0 8px; }
.nw-bloghead h1 { margin: 0 0 10px; font: 800 clamp(1.75rem, 1.3rem + 2vw, 2.5rem)/1.15 var(--font-display); color: var(--secondary); }
.nw-bloghead__intro { margin: 0 0 12px; font-size: 1.1rem; color: var(--text-secondary); }
.nw-chips ul { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.nw-postgrid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); margin-top: 20px; }
.nw-postgrid__ad { grid-column: 1 / -1; }
.nw-postcard { display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; background: var(--card-bg); box-shadow: var(--shadow-sm); min-width: 0; }
.nw-postcard__media img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.nw-postcard__body { padding: 16px; display: flex; flex-direction: column; gap: 6px; }
.nw-postcard__kicker { margin: 0; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent-hover, var(--accent)); }
.dark .nw-postcard__kicker, .dark .nw-post__kicker a { color: var(--success); }
.nw-postcard__title { margin: 0; font: 700 1.15rem/1.35 var(--font-display); overflow-wrap: anywhere; }
.nw-postcard__title a { color: var(--secondary); text-decoration: none; }
.nw-postcard__title a:hover { color: var(--primary); text-decoration: underline; }
.nw-postcard__excerpt { margin: 0; color: var(--text-secondary); line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.nw-postcard__meta { margin: auto 0 0; font-size: 0.82rem; color: var(--text-muted); }
.nw-pager ul { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; align-items: center; padding: 0; margin: 32px 0 0; }
.nw-pager a { display: inline-block; padding: 10px 16px; border: 1px solid var(--border); border-radius: 10px; text-decoration: none; color: var(--text); min-height: 44px; }
.nw-pager a:hover { border-color: var(--primary); color: var(--primary); }
.nw-empty { padding: 32px 0; color: var(--text-secondary); }

/* Managed ad placements (activated by nw.js only when visible for the current viewport) */
.nw-ad { display: none; margin: 20px auto; max-width: var(--max-width); text-align: center; min-height: 0; }
.nw-ad.is-active { display: block; }
.nw-ad__label { display: block; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 4px; }
.nw-ad--header_below, .nw-ad--footer_above { padding: 0 16px; }
.nw-ad--rail_left, .nw-ad--rail_right { position: fixed; top: calc(var(--header-height, 64px) + 64px); width: 160px; margin: 0; z-index: 5; }
.nw-ad--rail_left { left: calc(50% - (var(--max-width) / 2) - 184px); }
.nw-ad--rail_right { right: calc(50% - (var(--max-width) / 2) - 184px); }
/* rails exist only when 160px + 24px gap fit on both sides of the 1280px content column */
@media (max-width: 1679px) { .nw-ad--rail_left, .nw-ad--rail_right { display: none !important; } }

/* Consent banner */
.nw-consent { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 90; }
.nw-consent__inner { max-width: 760px; margin: 0 auto; padding: 16px; border-radius: 14px; background: var(--card-bg); color: var(--text); border: 1px solid var(--border); box-shadow: var(--shadow-lg); }
.nw-consent__text { margin: 0 0 10px; line-height: 1.5; }
.nw-consent__choices { display: grid; gap: 6px; margin: 0 0 10px; }
.nw-consent__choices label { display: flex; gap: 8px; align-items: center; min-height: 32px; }
.nw-consent__actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
@media (max-width: 480px) { .nw-consent__actions .nw-btn { flex: 1 1 100%; } }

/* AI-built (declarative) calculators */
.nw-aicalc { padding-bottom: 48px; }
.nw-aicalc__head { max-width: 860px; padding: 24px 0 8px; }
.nw-aicalc__head h1 { margin: 0 0 8px; font: 800 clamp(1.7rem, 1.2rem + 2vw, 2.4rem)/1.15 var(--font-display); color: var(--secondary); }
.nw-aicalc__lead { margin: 0; font-size: 1.08rem; color: var(--text-secondary); }
.nw-aicalc__card { max-width: 860px; margin: 16px 0 24px; padding: clamp(16px, 3vw, 28px); border: 1px solid var(--border); border-radius: 16px; background: var(--card-bg); box-shadow: var(--shadow-md); }
.nw-aicalc__inputs { display: grid; gap: 14px 20px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); margin-bottom: 16px; }
.nw-aicalc__field label { display: block; font-weight: 700; margin-bottom: 6px; }
.nw-aicalc__field input, .nw-aicalc__field select { width: 100%; min-height: 44px; padding: 8px 12px; border: 1.5px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--text); font: inherit; }
.nw-aicalc__field input:focus-visible, .nw-aicalc__field select:focus-visible { outline: 3px solid var(--focus-ring, var(--primary)); outline-offset: 1px; }
.nw-aicalc__field input[aria-invalid="true"] { border-color: var(--danger); }
.nw-aicalc__unit { font-weight: 400; color: var(--text-muted); }
.nw-aicalc__help { margin: 4px 0 0; font-size: 0.85rem; color: var(--text-secondary); }
.nw-aicalc__results { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.nw-aicalc__results h2 { margin: 0 0 8px; font: 700 1.15rem/1.3 var(--font-display); color: var(--secondary); }
.nw-aicalc__results dl { margin: 0; display: grid; gap: 8px; }
.nw-aicalc__out { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; border-radius: 10px; background: var(--surface-2); flex-wrap: wrap; }
.nw-aicalc__out dt { font-weight: 600; } .nw-aicalc__out dd { margin: 0; font-weight: 800; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.nw-aicalc__out.is-primary { background: var(--primary-50); font-size: 1.15rem; }
html.dark .nw-aicalc__out.is-primary { background: var(--surface-2); }
.nw-aicalc__status { min-height: 1.2em; font-size: 0.85rem; color: var(--text-muted); margin: 8px 0 0; }
.nw-aicalc__about { max-width: 760px; }
.nw-aicalc__formula { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--surface-2); padding: 10px 12px; border-radius: 8px; overflow-wrap: anywhere; }