/* Research Institute — page family styles (register, programs, papers). Uses site.css tokens only.
   Generated pages reference this file; never inline these rules in the generators. v20260904 */
.rs-hero { --hero-image: radial-gradient(42rem 26rem at 88% 8%, rgba(90, 220, 255, 0.16), transparent 60%),
  radial-gradient(36rem 26rem at 4% 92%, rgba(255, 90, 31, 0.14), transparent 62%),
  repeating-linear-gradient(90deg, rgba(242, 236, 219, 0.025) 0 1px, transparent 1px 7rem),
  linear-gradient(180deg, #090c12, #06070b);
  --hero-overlay: linear-gradient(90deg, rgba(6, 7, 11, 0.25), rgba(6, 7, 11, 0.05)); }
.rs-hero .hero-lede { max-width: 52rem; }
.rs-hero-prog h1 { font-size: clamp(2rem, 5.2vw, 3.8rem); line-height: 1.02; max-width: 18ch; }
.rs-stats { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr)); margin-top: 1.6rem; max-width: 64rem; }
.rs-stat { background: rgba(14, 19, 28, 0.82); border: 1px solid var(--line); border-top: 2px solid var(--cyan); padding: 0.8rem 0.95rem; }
.rs-stat b { color: var(--paper); display: block; font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 400; letter-spacing: 0.02em; line-height: 1; }
.rs-stat span { color: var(--muted); display: block; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em; margin-top: 0.45rem; text-transform: uppercase; }
.rs-stat.ember { border-top-color: var(--ember); } .rs-stat.moss { border-top-color: var(--moss); } .rs-stat.gold { border-top-color: var(--gold); } .rs-stat.violet { border-top-color: var(--violet); }
.section-header { display: block; }
.section-header h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); margin-top: 0.5rem; max-width: none; }
.section-header > p { color: var(--muted); margin-top: 0.7rem; max-width: 50rem; padding-bottom: 0; }
.rs-tier { border: 1px solid var(--line-strong); border-radius: 2px; display: inline-block; font-family: var(--font-mono); font-size: 0.62rem; font-weight: 700; letter-spacing: 0.14em; line-height: 1.2; padding: 0.22rem 0.5rem; text-transform: uppercase; white-space: nowrap; }
.rs-tier-cert { border-color: rgba(155, 207, 95, 0.75); color: var(--moss); background: rgba(155, 207, 95, 0.08); }
.rs-tier-replay { border-color: rgba(155, 207, 95, 0.5); color: var(--moss); }
.rs-tier-solver { border-color: rgba(90, 220, 255, 0.6); color: var(--cyan); }
.rs-tier-lean { border-color: rgba(157, 107, 255, 0.7); color: var(--violet); background: rgba(157, 107, 255, 0.08); }
.rs-tier-paper { border-color: var(--line-strong); color: var(--muted); }
.rs-tier-receipt { border-color: rgba(255, 194, 75, 0.55); color: var(--gold); }
.rs-tier-legacy { border-color: rgba(255, 90, 31, 0.6); color: var(--ember-soft); }
.rs-tier-neg { border-color: rgba(255, 90, 31, 0.5); color: var(--ember-soft); }
.rs-tier-open { border-color: rgba(255, 194, 75, 0.65); color: var(--gold); background: rgba(255, 194, 75, 0.06); }
.rs-audit { border-radius: 2px; color: var(--soft); font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em; padding: 0.2rem 0.45rem; text-transform: uppercase; white-space: nowrap; }
.rs-audit-confirmed { color: var(--moss); border: 1px dashed rgba(155, 207, 95, 0.45); }
.rs-audit-stale { color: var(--ember-soft); border: 1px dashed rgba(255, 90, 31, 0.5); }
.rs-audit-deficient, .rs-audit-unstated { color: var(--gold); border: 1px dashed rgba(255, 194, 75, 0.5); }
.rs-id { color: var(--soft); font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; }
.rs-legend { display: grid; gap: 0.9rem 2.2rem; grid-template-columns: repeat(auto-fit, minmax(22rem, 1fr)); }
.rs-legend-row { align-items: baseline; display: grid; gap: 0 1rem; grid-template-columns: 11.5rem minmax(0, 1fr); }
.rs-legend-row .rs-tier, .rs-legend-row .rs-audit { box-sizing: border-box; display: block; text-align: center; width: 100%; }
.rs-legend-row p { color: var(--muted); font-size: 0.88rem; }
.rs-showcase { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); }
.rs-card { background: var(--panel-2); border: 1px solid var(--line-strong); display: flex; flex-direction: column; gap: 0.6rem; padding: 1.2rem; position: relative; transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease; }
.rs-card::before { background: linear-gradient(90deg, var(--cyan), transparent); content: ""; height: 2px; left: 0; position: absolute; right: 40%; top: -1px; }
.rs-card.tier-cert::before, .rs-card.tier-replay::before, .rs-card.tier-lean::before { background: linear-gradient(90deg, var(--moss), transparent); }
.rs-card.tier-open::before { background: linear-gradient(90deg, var(--gold), transparent); }
.rs-card.is-neg::before { background: linear-gradient(90deg, var(--ember), transparent); }
.rs-card:hover { border-color: var(--paper); box-shadow: var(--shadow-hard); transform: translate(-3px, -3px); }
.rs-card-top { align-items: center; display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: space-between; }
.rs-card-title { font-size: 1.06rem; font-weight: 600; line-height: 1.4; }
.rs-card-title a, .rs-row-title a, .rs-prog-list a { color: inherit; text-decoration: none; }
.rs-card-title a:hover, .rs-row-title a:hover, .rs-prog-list a:hover { color: var(--ember-soft); text-decoration: underline; text-decoration-color: var(--ember); }
.rs-formula { color: var(--cyan); display: block; font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.01em; opacity: 0.92; overflow-wrap: anywhere; }
.rs-card .rs-claim { color: var(--muted); font-size: 0.92rem; line-height: 1.5; }
.rs-card-foot { align-items: center; color: var(--soft); display: flex; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.66rem; gap: 0.4rem 0.8rem; letter-spacing: 0.14em; margin-top: auto; text-transform: uppercase; }
.rs-card-foot a { color: var(--cyan); text-decoration: none; } .rs-card-foot a:hover { color: var(--ember-soft); }
.rs-fine { border-left: 2px solid var(--gold); color: var(--muted); font-size: 0.82rem; line-height: 1.5; margin: 0.4rem 0 0; padding-left: 0.7rem; }
.rs-list { display: grid; gap: 0.55rem; list-style: none; margin: 0; padding: 0; }
.rs-row { background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--line-strong); padding: 0.75rem 0.95rem; }
.rs-row.tier-cert, .rs-row.tier-replay, .rs-row.tier-lean { border-left-color: rgba(155, 207, 95, 0.7); }
.rs-row.tier-solver { border-left-color: rgba(90, 220, 255, 0.6); }
.rs-row.tier-open { border-left-color: rgba(255, 194, 75, 0.7); }
.rs-row.is-neg { border-left-color: rgba(255, 90, 31, 0.6); }
.rs-row:hover { border-color: var(--line-strong); }
.rs-row-main { align-items: baseline; display: flex; flex-wrap: wrap; gap: 0.35rem 0.9rem; }
.rs-row-title { flex: 1 1 26rem; font-size: 0.96rem; line-height: 1.5; min-width: 16rem; }
.rs-row .rs-formula { color: var(--soft); font-size: 0.74rem; margin-top: 0.4rem; }
.rs-programs { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); }
.rs-prog { background: var(--panel); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 0.55rem; padding: 1.1rem 1.2rem; transition: border-color 200ms ease, transform 200ms ease; }
.rs-prog:hover { border-color: var(--cyan); transform: translateY(-2px); }
.rs-prog h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 400; letter-spacing: 0.03em; line-height: 1.1; text-transform: uppercase; }
.rs-prog h3 a { color: inherit; text-decoration: none; } .rs-prog h3 a:hover { color: var(--cyan); }
.rs-prog-count { color: var(--soft); font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; }
.rs-prog p { color: var(--muted); font-size: 0.9rem; line-height: 1.5; }
.rs-prog-list { color: var(--paper); font-size: 0.86rem; line-height: 1.5; list-style: none; margin: 0.2rem 0 0; padding: 0; }
.rs-prog-list li { border-top: 1px solid var(--line); padding: 0.35rem 0; }
.rs-prog-list .rs-id { margin-right: 0.5rem; }
.rs-ledger { display: grid; gap: 0.6rem; list-style: none; margin: 0; padding: 0; }
.rs-ledger li { background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--ember); color: var(--muted); font-size: 0.88rem; line-height: 1.55; padding: 0.7rem 0.95rem; }
.rs-ledger li .rs-id { color: var(--ember-soft); margin-right: 0.6rem; }
.rs-ledger li a { color: var(--paper); text-decoration: none; } .rs-ledger li a:hover { color: var(--ember-soft); }
.rs-story { border-left: 3px solid var(--cyan); }
.rs-provenance { color: var(--soft); font-size: 0.84rem; margin-top: 2.2rem; }
.rs-provenance code { font-family: var(--font-mono); font-size: 0.78rem; }
.rs-audit-band { background: var(--panel-2); border: 1px solid var(--line-strong); display: grid; gap: 1rem 2rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); padding: 1.3rem 1.5rem; }
.rs-audit-band div b { color: var(--paper); display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 400; line-height: 1; }
.rs-audit-band div span { color: var(--muted); display: block; font-size: 0.86rem; margin-top: 0.4rem; }
/* register table + filters */
.rs-filters { align-items: end; background: var(--panel); border: 1px solid var(--line); display: grid; gap: 0.7rem 1rem; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); margin-bottom: 1.2rem; padding: 1rem 1.1rem; position: sticky; top: 0; z-index: 3; }
.rs-filters label { color: var(--soft); display: block; font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; }
.rs-filters input, .rs-filters select { background: var(--ink-2); border: 1px solid var(--line-strong); color: var(--paper); font-family: var(--font-body); font-size: 0.9rem; margin-top: 0.3rem; padding: 0.45rem 0.55rem; width: 100%; }
.rs-filters input:focus, .rs-filters select:focus { border-color: var(--cyan); outline: none; }
.rs-filters .rs-count { color: var(--muted); font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; }
.rs-table-wrap { overflow-x: auto; }
.rs-table { border-collapse: collapse; width: 100%; }
.rs-table th { border-bottom: 1px solid var(--line-strong); color: var(--muted); font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.12em; padding: 0.55rem 0.6rem; text-align: left; text-transform: uppercase; }
.rs-table td { border-bottom: 1px solid var(--line); font-size: 0.9rem; line-height: 1.45; padding: 0.6rem 0.6rem; vertical-align: top; }
.rs-table tr:hover td { background: rgba(242, 236, 219, 0.03); }
.rs-table td a { color: var(--paper); text-decoration: none; } .rs-table td a:hover { color: var(--ember-soft); }
.rs-table .rs-formula { color: var(--soft); font-size: 0.72rem; margin-top: 0.25rem; }
.rs-table tr[hidden] { display: none; }
.rs-kind { color: var(--soft); font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; }
/* paper pages */
.paper-shell { margin: 0 auto; max-width: 54rem; padding: clamp(2.5rem, 5vw, 4rem) 1.25rem 4rem; }
.paper-crumbs { color: var(--soft); font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; }
.paper-crumbs a { text-decoration: none; } .paper-crumbs a:hover { color: var(--ember-soft); }
.paper-shell h1 { font-family: var(--font-display); font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 400; letter-spacing: 0.02em; line-height: 1.08; margin-top: 0.9rem; max-width: none; text-transform: uppercase; }
.paper-formula { border-left: 3px solid var(--cyan); color: var(--cyan); font-family: var(--font-mono); font-size: 0.95rem; margin: 1rem 0 0; overflow-wrap: anywhere; padding: 0.4rem 0 0.4rem 0.9rem; }
.paper-chips { align-items: center; display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.paper-chip { border: 1px solid var(--line-strong); border-radius: 2px; color: var(--muted); font-family: var(--font-mono); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.14em; padding: 0.22rem 0.55rem; text-transform: uppercase; }
.paper-chip a { color: inherit; text-decoration: none; } .paper-chip a:hover { color: var(--cyan); }
.paper-plain { background: var(--panel-2); border: 1px solid var(--line); border-left: 3px solid var(--cyan); margin: 1.6rem 0; padding: 1.2rem 1.4rem; }
.paper-plain .paper-plain-tag { color: var(--cyan); font-family: var(--font-mono); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.paper-plain p { color: var(--paper); }
.paper-body h2 { border-bottom: 1px solid var(--line); font-family: var(--font-display); font-size: clamp(1.3rem, 2.6vw, 1.8rem); font-weight: 400; letter-spacing: 0.03em; margin: 2.4rem 0 0.9rem; padding-bottom: 0.5rem; text-transform: uppercase; }
.paper-body h3 { font-size: 1.05rem; margin: 1.4rem 0 0.4rem; }
.paper-body p, .paper-body li { color: var(--paper); line-height: 1.75; margin: 0.8rem 0; }
.paper-body code { background: var(--panel); border: 1px solid var(--line); font-family: var(--font-mono); font-size: 0.86em; padding: 0.08rem 0.35rem; }
.paper-table { margin: 1rem 0; overflow-x: auto; }
.paper-table table { border-collapse: collapse; width: 100%; }
.paper-table th, .paper-table td { border: 1px solid var(--line); font-size: 0.9rem; padding: 0.5rem 0.7rem; text-align: left; }
.paper-table th { color: var(--muted); font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; }
.paper-fine { background: rgba(255, 194, 75, 0.05); border: 1px solid rgba(255, 194, 75, 0.35); margin: 1.4rem 0; padding: 1rem 1.2rem; }
.paper-fine .paper-plain-tag { color: var(--gold); font-family: var(--font-mono); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.paper-fine p { color: var(--muted); font-size: 0.9rem; line-height: 1.6; margin: 0.5rem 0 0; }
.paper-related { display: grid; gap: 0.5rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); list-style: none; margin: 0.8rem 0 0; padding: 0; }
.paper-related li { background: var(--panel); border: 1px solid var(--line); font-size: 0.88rem; line-height: 1.45; padding: 0.6rem 0.8rem; }
.paper-related a { color: var(--paper); text-decoration: none; } .paper-related a:hover { color: var(--ember-soft); }
.paper-nav-end { border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin-top: 3rem; padding-top: 1.4rem; }
.hub-legend { align-items: center; display: flex; flex-wrap: wrap; gap: 0.5rem 0.8rem; margin-bottom: 2rem; }
.hub-legend-note { color: var(--soft); flex: 1 1 100%; font-size: 0.82rem; margin-top: 0.3rem; }
.rs-prose { max-width: 54rem; }
.rs-prose p { color: var(--paper); line-height: 1.75; margin: 0.8rem 0; }
.rs-prose h3 { font-family: var(--font-display); font-size: 1.35rem; font-weight: 400; letter-spacing: 0.03em; margin: 1.8rem 0 0.5rem; text-transform: uppercase; }
.rs-prose ul, .rs-prose ol { color: var(--paper); line-height: 1.7; margin: 0.6rem 0 0.6rem 1.2rem; }
.rs-prose code { background: var(--panel); border: 1px solid var(--line); font-family: var(--font-mono); font-size: 0.86em; padding: 0.08rem 0.35rem; }
@media (max-width: 640px) { .rs-legend-row { grid-template-columns: 1fr; gap: 0.3rem; } .rs-filters { position: static; } }

/* 2026-09-06: publication dates, prior-art fine print, paper changelog (operator ruling 2026-09-06) */
.rs-pub { color: var(--soft); font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.12em; margin: 0.5rem 0 0; text-transform: uppercase; }
.rs-pub-inline { margin: 0; white-space: nowrap; }
.rs-pub-section { letter-spacing: 0.14em; margin-top: 1rem; }
.rs-table .rs-pub { margin: 0; }
.rs-card .rs-pub { margin-top: 0.35rem; }
.rs-row .rs-fine, .rs-table .rs-fine { font-size: 0.78rem; margin-top: 0.45rem; }
.rs-fine a, .paper-prior a { color: var(--cyan); }
.paper-prior { border-left: 2px solid var(--gold); color: var(--muted); font-size: 0.92rem; line-height: 1.6; margin: 1.2rem 0 0; padding-left: 0.9rem; }
.paper-changelog { margin-top: 2.4rem; }
.paper-reviewed { color: var(--soft); font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; margin: 0 0 0.9rem; text-transform: uppercase; }
.paper-log { list-style: none; margin: 0; padding: 0; }
.paper-log li { border-top: 1px solid var(--line); display: grid; gap: 0.2rem 1.1rem; grid-template-columns: 7.5rem 1fr; padding: 0.75rem 0; }
.paper-log li span:last-child { color: var(--muted); font-size: 0.92rem; line-height: 1.6; }
.paper-log-date { color: var(--soft); font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; }
@media (max-width: 40rem) { .paper-log li { grid-template-columns: 1fr; } }

.rs-sources{display:block;margin-top:.2rem;font-size:.85em;opacity:.85}
.rs-sources a{margin-right:.15rem}