/* hydrasolver.com/proofs/ — written by tools/make-proof-pages.py; the site's tokens from store.css. */
.pf { max-width: 1040px; }
.pf .page-head { padding-bottom: clamp(1rem, 3vw, 1.5rem); }
.pf .page-head h1 { font-size: clamp(2.1rem, 5vw, 3.1rem); letter-spacing: -0.03em; line-height: 1.06; text-wrap: balance; }
.pf .page-head .lede { font-size: var(--fs-hero-lede); max-width: 66ch; }
.pf .lede strong { color: var(--text); }
.pf-backbar { margin: 0 0 1.1rem; font-size: var(--fs-foot); font-weight: 600; }
.pf-backbar a { color: var(--accent); text-decoration: none; }
.pf-backbar a:hover, .pf-backbar a:focus-visible { text-decoration: underline; }
.pf .facts { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 0.75rem; }
.pf .facts li { padding: 0.8rem 1rem 0.85rem; border: 1px solid var(--border-soft); border-radius: 12px; background: rgba(252, 253, 254, 0.72); }
.pf .facts strong { display: block; font-size: 1.12rem; font-weight: 700; letter-spacing: -0.015em; color: var(--text); font-variant-numeric: tabular-nums; }
.pf .facts span { display: block; margin-top: 0.1rem; font-size: var(--fs-foot); color: var(--text-secondary); }

.pf-section { padding-block: clamp(1.75rem, 4vw, 2.5rem); border-top: 1px solid var(--border); display: grid; gap: 1rem; }
.pf-section > h2 { margin: 0; font-size: var(--fs-section-title); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; color: var(--text); text-wrap: balance; }
.pf-section > p { margin: 0; max-width: 70ch; line-height: 1.6; color: var(--text-secondary); }
.pf-section > p strong { color: var(--text); }
.pf h3 { margin: 0; font-size: var(--fs-card-title); font-weight: 650; letter-spacing: -0.01em; color: var(--text); }
.pf .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; white-space: nowrap; }

/* Cards as HydraSolver draws them: a plate in the suit's colour. */
.pf-board { display: inline-flex; gap: 3px; align-items: center; flex-wrap: nowrap; vertical-align: middle; }
.pf-card { display: inline-grid; place-items: center; align-content: center; width: 24px; height: 32px; border-radius: 4px; background: #3a4250; color: #fafbfc; font-weight: 800; font-size: 13px; line-height: 1; }
.pf-card span { display: block; font-size: 10px; line-height: 1; margin-top: 1px; }
.pf-card.c { background: #247a62; }
.pf-card.h { background: #b8535e; }
.pf-card.d { background: #447aa8; }
.pf-card.back { background: linear-gradient(160deg, #1a6b75, #0a3d44); box-shadow: inset 0 0 0 1.5px #fafbfc; }

.pf-spots { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; }
.pf-spot { display: grid; gap: 0.6rem; align-content: start; padding: 1rem 1rem 0.9rem; border: 1px solid var(--border-soft); border-radius: 12px; background: var(--panel); }
.pf-label { font-size: var(--fs-kicker); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); }
.pf-seat { display: flex; align-items: center; gap: 0.45rem; }
.pf-seat .who { width: 3rem; flex: none; font-size: var(--fs-foot); color: var(--text-muted); }
.pf-figure { margin-top: 0.15rem; font-size: 1.6rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; color: var(--accent-deep); font-variant-numeric: tabular-nums; }
.pf-unit { margin-top: -0.4rem; font-size: var(--fs-foot); color: var(--text-secondary); }
.pf-line { font-size: var(--fs-foot); line-height: 1.6; color: var(--text-secondary); }
.pf-line .pf-board { margin-inline: 0.1rem; }
.pf-pot { font-size: var(--fs-foot); font-weight: 600; color: var(--text); }
.pf-note { margin: 0.75rem 0 0; max-width: 85ch; font-size: var(--fs-foot); line-height: 1.55; color: var(--text-muted); }

.pf-figure-wrap { margin: 0; display: grid; gap: 0.6rem; }
.pf-figure-wrap figcaption { font-size: var(--fs-foot); line-height: 1.55; color: var(--text-muted); max-width: 85ch; }
.pf-chart-wrap { overflow-x: auto; padding: 0.6rem 0.5rem 0.25rem; border: 1px solid var(--border-soft); border-radius: 12px; background: var(--panel); }
.pf-chart { display: block; width: 100%; height: auto; min-width: 520px; }
.pf-chart .grid { stroke: var(--border-soft); stroke-width: 1; }
.pf-chart .grid.faint { stroke-dasharray: 2 4; }
.pf-chart .tick { fill: var(--text-muted); font: 500 11.5px var(--font); }
.pf-chart .axis { fill: var(--text-secondary); font: 500 12px var(--font); }
.pf-chart .line { fill: none; stroke-width: 2.25; stroke-linejoin: round; stroke-linecap: round; }
.pf-chart .dot { stroke: var(--panel); stroke-width: 1.5; }
.pf-chart .end { font: 700 13px var(--font); }
.pf-chart .a { stroke: #0a7a8a; } .pf-chart .dot.a, .pf-chart .end.a { fill: #0a7a8a; }
.pf-chart .b { stroke: #b9801a; } .pf-chart .dot.b, .pf-chart .end.b { fill: #b9801a; }
.pf-chart .c { stroke: #121a22; } .pf-chart .dot.c, .pf-chart .end.c { fill: #121a22; }
.pf-chart text.end { stroke: none; }

.pf-table { overflow-x: auto; border: 1px solid var(--border-soft); border-radius: 12px; background: var(--panel); }
.pf-table table { width: 100%; border-collapse: collapse; font-size: var(--fs-foot); }
.pf-table th, .pf-table td { padding: 0.6rem 0.8rem; text-align: left; vertical-align: middle; white-space: nowrap; border-bottom: 1px solid var(--border-soft); color: var(--text-secondary); }
.pf-table tbody tr:last-child th, .pf-table tbody tr:last-child td { border-bottom: 0; }
.pf-table thead th { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-muted); background: rgba(240, 244, 248, 0.7); }
.pf-table tbody th { color: var(--text); font-weight: 700; }
.pf-table .r { text-align: right; }

.pf-checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.85rem; }
.pf-check { display: grid; gap: 0.6rem; padding: 1rem 1.1rem 1.05rem; border: 1px solid var(--border-soft); border-radius: 12px; background: var(--panel); }
.pf-check > p { margin: 0; max-width: 85ch; line-height: 1.6; color: var(--text-secondary); }
.pf-check .pf-board { margin-inline: 0.15rem; }
.pf-tag { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--success); }
.pf-small { margin: 0; font-size: var(--fs-foot); line-height: 1.5; color: var(--text-muted); }

.pf-scope { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.85rem; }
.pf-scope.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pf-scope > div { display: grid; gap: 0.45rem; align-content: start; padding: 1rem 1.1rem 1.05rem; border-radius: 12px; }
.pf-scope .exact { background: var(--selection-soft); }
.pf-scope .est { border: 1px solid var(--border-soft); background: var(--panel); }
.pf-scope p { margin: 0; line-height: 1.6; color: var(--text-secondary); }

.pf-offers, .pf-howto { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 0.85rem; }
.pf-offers li, .pf-howto li { display: grid; gap: 0.35rem; align-content: start; padding: 1rem 1.1rem 1.05rem; border: 1px solid var(--border-soft); border-radius: 12px; background: var(--panel); }
.pf-offers p, .pf-howto p { margin: 0; line-height: 1.55; color: var(--text-secondary); }

.pf-games { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 0.85rem; }
.pf-game { display: grid; gap: 0.2rem; height: 100%; padding: 1.1rem 1.15rem 1.05rem; border: 1px solid var(--border-soft); border-radius: 12px; background: var(--panel); text-decoration: none; transition: border-color 0.15s ease, box-shadow 0.15s ease; }
.pf-game:hover, .pf-game:focus-visible { border-color: var(--accent); box-shadow: 0 10px 24px -18px rgba(10, 122, 138, 0.6); }
.pf-game-name { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.015em; color: var(--text); }
.pf-game-scope { font-size: var(--fs-foot); color: var(--text-secondary); }
.pf-game-figure { margin-top: 0.7rem; font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; color: var(--accent-deep); font-variant-numeric: tabular-nums; }
.pf-game-unit { font-size: var(--fs-foot); color: var(--text-secondary); }
.pf-game-checked { margin-top: 0.7rem; font-size: var(--fs-foot); color: var(--success); font-weight: 600; }
.pf-game-go { margin-top: 0.5rem; font-weight: 600; color: var(--accent); }
.pf-game-go::after { content: ' →'; }
.pf-two, .pf-offers.pf-four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pf-game-next { align-content: start; border: 1px dashed var(--border); background: transparent; }
.pf-game-soon { margin-top: 0.7rem; font-size: var(--fs-foot); font-weight: 600; color: var(--text-muted); }

.pf .related { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); gap: 0.85rem; }
.pf .related a { display: block; height: 100%; padding: 1rem 1.1rem 1.05rem; border: 1px solid var(--border-soft); border-radius: 12px; background: var(--panel); text-decoration: none; transition: border-color 0.15s ease, box-shadow 0.15s ease; }
.pf .related a:hover, .pf .related a:focus-visible { border-color: var(--accent); box-shadow: 0 10px 24px -18px rgba(10, 122, 138, 0.6); }
.pf .related strong { display: block; font-size: var(--fs-card-title); color: var(--accent-deep); }
.pf .related strong::after { content: ' →'; }
.pf .related span { display: block; margin-top: 0.25rem; font-size: var(--fs-foot); line-height: 1.5; color: var(--text-secondary); }

.pf-foot { margin: 0; padding: 1.5rem 0 clamp(2rem, 5vw, 3rem); border-top: 1px solid var(--border); font-size: var(--fs-foot); line-height: 1.55; color: var(--text-muted); max-width: 90ch; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Five cards a row of three and a row of two, both full: no card alone beside a gap. */
.pf-five { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.pf-five > li:nth-child(-n+3) { grid-column: span 2; }
.pf-five > li:nth-child(n+4) { grid-column: span 3; }
.pf .related.pf-five { grid-template-columns: repeat(6, minmax(0, 1fr)); }

@media (max-width: 760px) {
  .pf-spots, .pf-scope, .pf-scope.three { grid-template-columns: minmax(0, 1fr); }
  .pf-five, .pf .related.pf-five, .pf-two, .pf-offers.pf-four { grid-template-columns: minmax(0, 1fr); }
  .pf-five > li:nth-child(n) { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .pf-game, .pf .related a { transition: none; }
}