/* =====================================================================
   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); }