/* The formula page (2026-10-03). Loads after foundry.css; same paper/ink/moss/coral, no new palette.
 * Crisp on purpose: hairline tiles, mono labels, one accent per block. */
.formula .mono, .formula pre, .formula .eq-k { font-family: var(--mono); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* 1. the equation */
.eq { display: grid; grid-template-columns: minmax(0, 1.6fr) 40px minmax(0, 1fr); gap: 14px; align-items: stretch; margin: 34px 0 40px; }
.eq-inputs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.eq-inputs .eq-tile:first-child { grid-column: 1 / -1; }
.eq-out { display: grid; gap: 12px; }
.eq-tile { background: #fff; border: 1px solid rgba(39, 48, 47, .18); border-radius: 10px; padding: 14px 16px; }
.eq-tile b { display: block; font-family: var(--serif); font-weight: 500; font-size: 21px; letter-spacing: -.02em; margin: 4px 0 4px; }
.eq-tile p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.eq-k { display: block; margin: 0; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--primary); }
.eq-arrow { display: grid; place-items: center; }
.eq-arrow span { font-family: var(--serif); font-size: 40px; color: var(--coral); }
.eq-prompt { border-color: var(--primary-ring); }
.eq-serial { background: var(--panel-2); border-style: dashed; }

/* 2. live demo */
.live { margin: 0 0 40px; }
.live-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 18px; flex-wrap: wrap; }
.live-head h2, .recipe-head h2, .tables h2 { margin: 0; font-family: var(--serif); font-weight: 500; font-size: var(--display-2, 32px); letter-spacing: -.03em; }
.live-head .note { margin: 0; font-family: var(--mono); font-size: 12px; }
.live-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 28px; margin: 22px 0 14px; align-items: start; }
.live-mood span { display: block; font-size: 14px; margin-bottom: 10px; color: var(--muted); }
.live-mood b { color: var(--foreground); font-family: var(--mono); }
.live-mood em { font-style: normal; font-weight: 700; color: var(--coral); }
.live-mood input { width: 100%; accent-color: var(--primary); }
.live-out { margin: 0; }
.formula pre.prompt { margin: 0; padding: 12px 14px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; font-size: 12px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; color: var(--ink); }

/* 3. recipes */
.recipe-sec { margin: 0 0 44px; }
.recipe-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 18px; flex-wrap: wrap; margin-bottom: 16px; }
.recipe-pick select { min-width: 260px; height: 40px; padding: 0 12px; border: 1px solid var(--input); border-radius: 8px; background: #fff; font: inherit; }
.recipe { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 28px; align-items: start; }
.recipe-art { display: grid; place-items: center; height: 240px; border: 1px solid var(--border-2); border-radius: 8px; background-color: var(--panel-2);
  background-image: linear-gradient(rgba(39, 48, 47, .055) 1px, transparent 1px), linear-gradient(90deg, rgba(39, 48, 47, .055) 1px, transparent 1px); background-size: 16px 16px; }
.recipe-art img { width: 192px; height: 208px; }
.recipe-body h3 { margin: 0 0 6px; font-family: var(--serif); font-weight: 500; font-size: 30px; letter-spacing: -.025em; }
.recipe-body .kv { margin: 12px 0 16px; }
.recipe-body .eq-k { margin-bottom: 6px; }
.recipe-body .btn-row { margin-top: 14px; }

/* 4. tables */
.tables .t-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 18px 0 12px; }
.tables .card > b { font-family: var(--serif); font-weight: 500; font-size: 20px; }
.tables table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 13px; }
.tables td { padding: 7px 0; border-top: 1px solid var(--border-2); vertical-align: top; color: var(--muted); }
.tables td:first-child { width: 34%; padding-right: 10px; font-family: var(--mono); font-size: 11.5px; color: var(--foreground); }
.tables .note .mono { font-size: 12px; }

@media (max-width: 900px) {
  .eq { grid-template-columns: 1fr; }
  .eq-arrow span { transform: rotate(90deg); }
  .live-grid, .recipe, .tables .t-grid { grid-template-columns: 1fr; }
  .recipe-art { height: 220px; }
}
@media (max-width: 560px) {
  .eq-inputs { grid-template-columns: 1fr; }
  .recipe-pick select { min-width: 0; width: 100%; }
  .recipe-pick { width: 100%; }
}