/* Content pages built by build.py: tools, guides and their section indexes. */
.content { max-width: 820px; padding-top: 28px; padding-bottom: 96px; }
.crumbs { font-size: 13.5px; color: var(--ink-soft); display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.crumbs a { color: var(--ink-soft); text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 3px; }
.crumbs a:hover { color: var(--accent); }
.content-head { margin: 26px 0 30px; }
.content-head h1 { font-size: 44px; line-height: 1.08; letter-spacing: -0.03em; margin: 2px 0 14px; }
.lede { font-size: 18px; line-height: 1.6; color: var(--ink-soft); max-width: 680px; }
.updated { font-size: 13.5px; color: var(--ink-soft); margin-top: 10px; }
.lang-switch { margin-top: 10px; font-size: 14.5px; font-weight: 700; }
.lang-switch a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* Article text */
.prose { font-size: 16.5px; line-height: 1.72; color: var(--ink); }
.prose h2 { font-size: 27px; line-height: 1.2; letter-spacing: -0.02em; margin: 44px 0 12px; }
.prose h3 { font-size: 19px; margin: 28px 0 8px; }
.prose p, .prose ul, .prose ol { margin: 0 0 16px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.prose a { color: var(--accent); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.prose table { width: 100%; border-collapse: collapse; margin: 8px 0 22px; font-size: 15px; background: var(--card); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow-card); }
.prose th, .prose td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { background: var(--accent-tint); color: var(--accent-deep); font-size: 13.5px; text-transform: uppercase; letter-spacing: 0.04em; }
.prose tr:last-child td { border-bottom: 0; }
.note { background: var(--accent-tint); border-radius: 14px; padding: 14px 18px; font-size: 15px; line-height: 1.6; margin: 0 0 20px; }

/* Calculators */
.calc { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow-card); padding: 28px; margin-bottom: 40px; }
.calc-tabs { display: inline-flex; background: var(--surface-tint); border-radius: 12px; padding: 4px; margin-bottom: 22px; gap: 4px; flex-wrap: wrap; }
.calc-tabs button { border: 0; background: transparent; font: inherit; font-size: 14px; font-weight: 700; color: var(--ink-soft); padding: 8px 14px; border-radius: 9px; cursor: pointer; }
.calc-tabs button[aria-selected="true"] { background: var(--card); color: var(--accent); box-shadow: 0 1px 3px rgba(22,32,28,0.12); }
.calc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 18px; }
.calc-grid .wide { grid-column: 1 / -1; }
.field label { display: block; font-size: 13.5px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.field .hint { font-size: 12.5px; color: var(--ink-soft); margin-top: 5px; }
.field input, .field select { width: 100%; font: inherit; font-size: 17px; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--ink); appearance: none; }
.field select { background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%), linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%); background-position: calc(100% - 20px) 52%, calc(100% - 14px) 52%; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 36px; }
.field input:focus, .field select:focus { outline: none; border-color: var(--accent); background: var(--card); }
.unit { position: relative; }
.unit input { padding-right: 58px; }
.unit span { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); font-size: 14px; color: var(--ink-soft); font-weight: 600; pointer-events: none; }
.result { margin-top: 24px; border-radius: 18px; padding: 22px 24px; background: var(--hero); color: var(--on-hero); }
.result .big { font-size: 40px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; }
.result .big small { font-size: 18px; font-weight: 700; opacity: 0.85; }
.result .sub { color: var(--on-hero-soft); font-size: 15px; margin-top: 6px; line-height: 1.5; }
.result .stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
.result .stat { background: rgba(255,255,255,0.10); border-radius: 12px; padding: 10px 12px; }
.result .stat b { display: block; font-size: 19px; }
.result .stat span { font-size: 12.5px; color: var(--on-hero-soft); }
.result.empty { background: var(--surface-tint); color: var(--ink-soft); }
.result.empty .big { font-size: 18px; font-weight: 600; }
.result.warn { background: linear-gradient(160deg, #B5541B 0%, #8E3D0F 100%); }
.result-table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 14.5px; }
.result-table td { padding: 8px 0; border-top: 1px solid rgba(255,255,255,0.15); }
.result-table td:last-child { text-align: right; font-weight: 700; }

/* FAQ, CTA, related */
.content-faq { margin-top: 56px; }
.content-faq h2, .related h2 { font-size: 27px; letter-spacing: -0.02em; margin-bottom: 18px; }
.content-faq .faq-list { margin: 0; max-width: none; }
.app-cta { margin-top: 56px; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; background: var(--hero); color: var(--on-hero); border-radius: var(--radius); padding: 30px 32px; }
.app-cta h2 { font-size: 24px; letter-spacing: -0.02em; margin-bottom: 8px; color: var(--on-hero); }
.app-cta p { font-size: 15.5px; line-height: 1.6; color: var(--on-hero-soft); margin: 0; }
.app-cta .btn { background: var(--card); color: var(--accent); white-space: nowrap; }
.related { margin-top: 56px; }
.rel-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.rel-card { display: flex; flex-direction: column; gap: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; color: var(--ink); transition: box-shadow 0.2s ease, border-color 0.2s ease; }
.rel-card:hover { box-shadow: var(--shadow-card); border-color: var(--accent-tint); }
.rel-card b { font-size: 17px; }
.rel-card span { font-size: 14.5px; color: var(--ink-soft); line-height: 1.5; }
.rel-card .rel-kicker { font-size: 12px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); }
.rel-grid-index { margin-top: 8px; }

@media (max-width: 720px) {
  .content { padding-top: 18px; }
  .content-head h1 { font-size: 32px; }
  .lede { font-size: 16.5px; }
  .calc { padding: 20px 16px; }
  .calc-grid { grid-template-columns: 1fr; }
  .result .big { font-size: 32px; }
  .result .stats { grid-template-columns: 1fr 1fr; }
  .app-cta { grid-template-columns: 1fr; text-align: left; padding: 24px 20px; }
  .rel-grid { grid-template-columns: 1fr; }
  .prose h2 { font-size: 23px; }
}