/* Shared styles for the free calculator pages */
.calc { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0; }
.calc .card label { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 4px; }
.calc .card label:first-of-type { margin-top: 0; }
.calc input, .calc select { width: 100%; font: inherit; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); }
.calc .hint { font-size: 13px; color: var(--muted); margin: 3px 0 0; }
.calc .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.seg { display: flex; gap: 6px; margin: 4px 0 0; }
.seg button { flex: 1; font: inherit; font-size: 14px; padding: 8px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--soft); border-color: var(--accent); color: var(--accent); font-weight: 600; }
.res .big { font-size: 44px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; color: var(--accent); }
.res .big small { font-size: 20px; font-weight: 600; }
.res dl { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; margin: 16px 0 0; font-size: 15px; }
.res dt { color: var(--muted); } .res dd { margin: 0; font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.res .status { margin: 14px 0 0; padding: 10px 12px; border-radius: 8px; background: var(--soft); font-size: 15px; }
.res .status.bad { background: color-mix(in srgb, var(--bad) 12%, transparent); color: var(--bad); }
.formula { font-family: var(--mono); background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; overflow-x: auto; font-size: 14px; }
.prose { max-width: 720px; } .prose p, .prose li { color: var(--ink); }
.cta { background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin: 32px 0; }
.related { margin: 40px 0 16px; }
.related ul { list-style: none; padding: 0; margin: 12px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.related li a { display: block; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); text-decoration: none; color: var(--ink); font-weight: 600; }
.related li a span { display: block; font-weight: 400; font-size: 14px; color: var(--muted); margin-top: 2px; }
.related li a[aria-current="page"] { border-color: var(--accent); color: var(--accent); }
.hidden { display: none; }
@media (max-width: 760px) { .calc { grid-template-columns: 1fr; } .calc .res { order: -1; } }