/* Playbook + library view. Prefix pb-. Tokens only. */
.pb { display: flex; flex-direction: column; min-height: 0; flex: 1; }
.pb-tabs { display: flex; gap: 4px; padding: 10px 20px 0; border-bottom: 1px solid var(--border); background: var(--card); flex-shrink: 0; }
.pb-tab { border: 0; background: transparent; padding: 9px 14px; font-size: 13px; font-weight: 500; color: var(--muted-fg); border-bottom: 2px solid transparent; display: inline-flex; gap: 8px; align-items: center; }
.pb-tab:hover { color: var(--fg); }
.pb-tab.on { color: var(--primary); border-bottom-color: var(--primary); }
.pb-scroll { flex: 1; overflow: auto; padding: 18px 20px 40px; min-height: 0; }
.pb-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.pb-bar h2 { font-size: 17px; font-weight: 600; }
.pb-bar p, .pb-note { color: var(--muted-fg); font-size: 12px; }
.pb h3 { font-size: 13.5px; font-weight: 600; }
.pb h3 small { font-weight: 400; color: var(--muted-fg); margin-left: 6px; }
.pb .mono { font-family: var(--font-mono); font-size: 12px; }
.pb-empty { padding: 40px 24px; text-align: center; color: var(--muted-fg); border: 1px dashed var(--border-strong); border-radius: var(--radius); display: flex; flex-direction: column; gap: 8px; align-items: center; }
.pb-empty strong { color: var(--fg); }
.pb-err { color: var(--bad); font-size: 12px; margin-bottom: 6px; min-height: 0; }
.pb-two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.pb-benchstrip { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; margin-bottom: 16px; }
.pb-bench { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 6px; border-left: 4px solid var(--border-strong); }
.pb-bench.bad { border-left-color: var(--bad); } .pb-bench.ok { border-left-color: var(--ok); }
.pb-bench-doc { font-size: 10px; font-weight: 600; letter-spacing: .04em; color: var(--primary); width: 100%; }
.pb-bench b { font-size: 18px; } .pb-bench span { font-size: 12px; color: var(--muted-fg); }
.pb-bench small { width: 100%; font-size: 11px; color: var(--muted-fg); }

.pb-heat { padding: 14px; margin-bottom: 16px; }
.pb-heat-h { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.pb-score { font-size: 20px; font-weight: 600; color: var(--primary); } .pb-score small { font-size: 11px; font-weight: 400; color: var(--muted-fg); margin-left: 3px; }
.pb-leg { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; color: var(--muted-fg); }
.pb-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(34px, 1fr)); gap: 4px; }
.pb-c { border: 1px solid transparent; border-radius: 6px; background: var(--muted); color: var(--muted-fg); font-size: 9.5px; font-family: var(--font-mono); height: 28px; display: grid; place-items: center; padding: 0; overflow: hidden; }
i.pb-c { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }
.pb-c.preferred { background: var(--ok-bg); color: var(--ok); border-color: var(--ok); }
.pb-c.fallback { background: var(--info-bg); color: var(--info); border-color: var(--info); }
.pb-c.walkaway { background: var(--warn-bg); color: var(--warn); border-color: var(--warn); }
.pb-c.breach { background: var(--bad); color: var(--primary-fg); border-color: var(--bad); }
.pb-c.none { background: var(--card); border: 1px dashed var(--border-strong); }
.pb-c.unmatched { background: var(--muted); opacity: .55; }
.pb-c.acc { outline: 2px dotted var(--ok); outline-offset: 1px; }
button.pb-c { cursor: pointer; } button.pb-c:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.pb-devs, .pb-rules { margin-bottom: 20px; }
.pb-devs h3, .pb-rules h3 { margin-bottom: 10px; }
.pb-devlist { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.pb-dev { background: var(--card); border: 1px solid var(--border); border-left: 4px solid var(--border-strong); border-radius: var(--radius); padding: 10px 12px; }
.pb-dev.breach { border-left-color: var(--bad); } .pb-dev.walkaway { border-left-color: var(--warn); } .pb-dev.fallback { border-left-color: var(--info); }
.pb-dev.acc { opacity: .7; border-left-color: var(--ok); }
.pb-dev-h { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.pb-dev-rule { font-size: 11.5px; color: var(--muted-fg); }
.pb-sc { font-family: var(--font-mono); font-size: 12px; color: var(--muted-fg); }
.pb-link { background: none; border: 0; padding: 0; font-size: 13px; font-weight: 500; color: var(--secondary); text-align: left; }
.pb-link:hover { text-decoration: underline; }
.pb-why { margin: 6px 0 8px; font-size: 12.5px; color: var(--muted-fg); overflow-wrap: anywhere; }
.pb-dev-a { display: flex; gap: 6px; flex-wrap: wrap; }

.pb-rulegrid { display: flex; flex-direction: column; gap: 10px; }
.pb-rule { padding: 12px 14px; }
.pb-rule-h { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.pb-ladder { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border); }
.pb-rung { padding: 8px 10px; border-right: 1px solid var(--border); display: flex; flex-direction: column; gap: 4px; min-height: 96px; }
.pb-rung:last-child { border-right: 0; }
.pb-rung.preferred { background: var(--ok-bg); } .pb-rung.fallback { background: var(--info-bg); }
.pb-rung.walkaway { background: var(--warn-bg); } .pb-rung.breach { background: var(--bad-bg); }
.pb-rung-h { font-size: 10px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; }
.pb-rung.preferred .pb-rung-h { color: var(--ok); } .pb-rung.fallback .pb-rung-h { color: var(--info); }
.pb-rung.walkaway .pb-rung-h { color: var(--warn); } .pb-rung.breach .pb-rung-h { color: var(--bad); }
.pb-rung-t { font-size: 12px; overflow-wrap: anywhere; flex: 1; }
.pb-dots { display: flex; gap: 4px; flex-wrap: wrap; }
.pb-dot { border: 0; border-radius: 999px; padding: 1px 8px; font-family: var(--font-mono); font-size: 10.5px; color: var(--primary-fg); }
.pb-dot.preferred { background: var(--ok); } .pb-dot.fallback { background: var(--info); }
.pb-dot.walkaway { background: var(--warn); } .pb-dot.breach { background: var(--bad); }
.pb-rule .pb-note { display: block; margin-top: 8px; }

.pb-filters { display: grid; grid-template-columns: minmax(180px, 2fr) repeat(4, minmax(110px, 1fr)); gap: 8px; margin-bottom: 12px; }
.pb .input { padding: 7px 10px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: var(--card); min-width: 0; }
.pb-sug { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; background: var(--primary-50); border-radius: var(--radius-sm); padding: 8px 10px; margin-bottom: 12px; font-size: 12px; }
.pb-chip { border: 1px solid var(--primary-100); background: var(--card); border-radius: 999px; padding: 2px 10px; font-size: 12px; }
.pb-chip small { color: var(--muted-fg); }
.pb-libsplit { display: grid; grid-template-columns: minmax(240px, 340px) minmax(0, 1fr); gap: 14px; align-items: start; }
.pb-liblist { display: flex; flex-direction: column; gap: 6px; max-height: 70vh; overflow: auto; padding-right: 2px; }
.pb-lc { text-align: left; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 9px 11px; display: flex; flex-direction: column; gap: 2px; }
.pb-lc:hover { border-color: var(--border-strong); } .pb-lc.on { border-color: var(--primary-300); background: var(--primary-50); }
.pb-lc b { font-size: 12.5px; } .pb-lc span { font-size: 11px; color: var(--primary); } .pb-lc small { font-size: 11.5px; color: var(--muted-fg); overflow-wrap: anywhere; }
.pb-prev { padding: 16px; }
.pb-prev-h h3 { font-size: 15px; } .pb-prev-h p { font-size: 12px; color: var(--muted-fg); margin: 3px 0 12px; }
.pb-bi { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pb-col { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; background: var(--bg); min-width: 0; }
.pb-col h4 { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted-fg); margin-bottom: 6px; }
.pb-body { font-size: 13px; line-height: 1.65; overflow-wrap: anywhere; white-space: pre-wrap; max-height: 320px; overflow: auto; }
.pb-ar { font-family: var(--font-ar); font-size: 14.5px; line-height: 1.9; text-align: right; }
.pb-cmp { margin-top: 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; }
.pb-cmp-h { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 12px; margin-bottom: 8px; }
.pb-diff { font-size: 13px; line-height: 1.7; overflow-wrap: anywhere; max-height: 280px; overflow: auto; }
.pb-diff .d-ins, .pb-diff ins { background: var(--ok-bg); color: var(--ok); text-decoration: none; border-radius: 3px; padding: 0 2px; }
.pb-diff .d-del, .pb-diff del { background: var(--bad-bg); color: var(--bad); border-radius: 3px; padding: 0 2px; }
.pb-prev-a { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; align-items: center; }

.pb-pk-list { max-height: 240px; overflow: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 10px; }
.pb-pk-row { display: block; width: 100%; text-align: left; border: 0; border-bottom: 1px solid var(--border); background: var(--card); padding: 7px 10px 7px calc(10px + var(--lv, 1) * 6px); font-size: 12.5px; }
.pb-pk-row:hover { background: var(--muted); } .pb-pk-row.on { background: var(--primary-50); color: var(--primary); font-weight: 600; }
.pb-pk-list .pb-note { padding: 8px 10px; }

@media (max-width: 1100px) { .pb-libsplit { grid-template-columns: 1fr; } .pb-liblist { max-height: 260px; } .pb-filters { grid-template-columns: 1fr 1fr; } .pb-q { grid-column: 1 / -1; } }
@media (max-width: 820px) {
  .pb-scroll { padding: 14px 12px 30px; } .pb-tabs { padding: 8px 12px 0; }
  .pb-ladder { grid-template-columns: 1fr 1fr; } .pb-rung:nth-child(2) { border-right: 0; } .pb-rung:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .pb-bi, .pb-two { grid-template-columns: 1fr; }
}
.pb-reads-h { margin: 16px 0 8px; }
.pb-reads { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 6px 14px; }
.pb-reads li { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }