/* Live Session 1 styles (classes prefixed .ls1-) */

/* question illustrations */
.ls1-flow{display:flex;flex-direction:column;align-items:center;gap:6px}
.ls1-ar{color:#8A84A0;font-size:15px;font-weight:700;line-height:1.3;text-align:center}
.ls1-ar2{color:#8A84A0;font-weight:700}
.ls1-big{font-size:clamp(20px,3.2vw,30px);text-align:center;overflow-x:auto}
.ls1-big .katex-display{margin:.3em 0}
.ls1-tag{display:block;width:max-content;margin:12px auto 0;background:var(--lav);border:1.5px solid var(--lav-l);border-radius:999px;padding:5px 14px;font-weight:800;font-size:14px;color:#3E2C7A}
.ls1-pairs{display:flex;flex-wrap:wrap;gap:10px 8px;justify-content:center;align-items:flex-start}
.ls1-pair{display:inline-flex;gap:4px;position:relative;padding-bottom:20px;border-bottom:3px solid var(--pc)}
.ls1-pair b{position:absolute;left:50%;bottom:-2px;transform:translate(-50%,0);width:20px;height:18px;border-radius:6px;background:var(--pc);color:#fff;font-size:11.5px;display:grid;place-items:center}
.ls1-corpus{display:block;font-size:15.5px;line-height:1.7;margin-top:4px}
.ls1-shuffle{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.ls1-shuffle .pc{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;padding:12px}
.ls1-shuffle .pc b{flex:none;width:26px;height:26px;border-radius:50%;background:#fff;border:1.5px dashed var(--brand);color:var(--brand);display:grid;place-items:center;font-size:13px}
.ls1-read{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;margin:0 0 14px;text-align:center;align-items:stretch}
.ls1-read .pc{font-size:14.5px;color:var(--body)}
.ls1-read .pc b.h{font-size:22px}
.ls1-xt{color:#B4651C}
.ls1-ctx{color:#2A5DB0}

/* Q1 distribution + stacked total */
.ls1-stack{display:flex;height:24px;border-radius:7px;overflow:hidden;background:#F0EEF5;margin-top:16px;max-width:640px}
.ls1-stack i{display:block;height:100%;width:0;transition:width .6s cubic-bezier(.2,.8,.2,1)}
.ls1-stacklab{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:4px;max-width:640px;font-weight:600}
.ls1-sum{color:var(--ink);font-weight:800}

/* Q3 waffle */
.ls1-waffle{--cs:clamp(17px,5.2vw,28px);display:grid;grid-template-columns:repeat(10,var(--cs));gap:clamp(3px,.8vw,5px);justify-content:center}
.ls1-waffle span{height:var(--cs);border-radius:clamp(3px,.8vw,6px);transition:opacity .35s,transform .35s}
.ls1-waffle.play span{animation:pop .35s both;animation-delay:var(--d)}
.ls1-waffle.sel span{opacity:.16}
.ls1-waffle.sel span.on{opacity:1}
.ls1-wtabs{display:flex;width:max-content;max-width:100%;margin-left:auto;margin-right:auto}
.ls1-frac .eqbox{margin-top:10px}

/* Q4 wheel */
.ls1-spin{display:grid;grid-template-columns:minmax(0,240px) minmax(0,1fr);gap:20px;align-items:center}
.ls1-wheelbox{display:flex;flex-direction:column;align-items:center;gap:10px}
.ls1-wheelbox svg{max-width:240px}
.ls1-runs{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-self:start}
.ls1-rh{display:block;font-family:var(--head);font-size:15px;margin-bottom:8px;line-height:1.3}
.ls1-col{display:grid;gap:6px}
.ls1-run{font-size:14.5px;padding:7px 10px;border-radius:9px;background:#fff;border:1.5px solid var(--line);animation:fadeup .4s both;line-height:1.35}
.ls1-run b{color:var(--green)}
.ls1-run.diff{border-color:var(--blue-l);background:#F3F8FE}
.ls1-run.diff b{color:#2A5DB0}
@media (max-width:640px){.ls1-spin{grid-template-columns:minmax(0,1fr)}.ls1-runs{grid-template-columns:1fr}}

/* n-gram windows */
.ls1-s{justify-content:center;margin:4px 0}
.ls1-list{display:flex;flex-wrap:wrap;gap:6px;min-height:42px;margin-top:14px;padding-top:12px;border-top:1.5px dashed var(--line);justify-content:center}
.ls1-pop{animation:pop .35s both}
.ls1-wineq .eqbox{margin:12px auto 0;max-width:560px}

/* Q9 count table */
.ls1-tab{display:grid;gap:4px;max-width:560px;margin:0 auto}
.ls1-tr{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.3fr);gap:10px;padding:8px 12px;border-radius:10px;background:#fff;border:1.5px solid var(--line);font-size:14.5px;transition:background .25s,border-color .25s,opacity .25s}
.ls1-th{background:transparent;border-color:transparent;font-size:12.5px;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;padding-top:0;padding-bottom:2px}
.ls1-tr.scan{background:#FFF8DD;border-color:#E3C14F}
.ls1-tr.hit{background:var(--green-soft);border-color:var(--green-l)}
.ls1-tr.miss{opacity:.45}
.ls1-q{margin-top:12px;max-width:560px;margin-left:auto;margin-right:auto}
.ls1-q .pc{overflow-x:auto}
.ls1-q .cap{display:block}

/* Q10 log scale */
.ls1-scale{max-width:620px;margin:0 auto}
.ls1-sr{display:grid;grid-template-columns:96px 1fr 92px;gap:10px;align-items:center;margin:8px 0;font-size:15px}
.ls1-sr .t{font-weight:700;text-align:right}
.ls1-sr .n{font-weight:700;font-variant-numeric:tabular-nums}
.ls1-sr .bar{height:18px;background:#F0EEF5;border-radius:5px;overflow:hidden}
.ls1-sr .bar i{display:block;height:100%;border-radius:5px;transition:width 1s cubic-bezier(.2,.8,.2,1)}
.ls1-tk{margin-top:2px}
.ls1-tk .ax{position:relative;height:16px}
.ls1-tk .ax span{position:absolute;top:0;transform:translateX(-50%);font-size:11.5px;color:var(--muted);font-weight:600;white-space:nowrap}
@media (max-width:520px){.ls1-sr{grid-template-columns:78px 1fr 74px;font-size:13px;gap:6px}.ls1-tk .ax span{font-size:10.5px}.ls1-tk .ax span:nth-child(even){display:none}}
.ls1-b{max-width:640px}

/* Q11 pipeline + Q12 training loop */
.ls1-stage{display:grid;gap:10px;justify-items:center}
.ls1-stage>.pc{width:100%;max-width:560px;text-align:center}
.ls1-raw{font-family:ui-monospace,Menlo,monospace;font-size:13.5px;color:var(--muted);word-break:break-word}
.ls1-loop{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}
.ls1-lp{border-radius:999px;padding:6px 12px;font-size:14px;font-weight:700;background:#fff;border:1.5px solid var(--line);transition:background .2s,border-color .2s,color .2s}
.ls1-lp.on{background:var(--brand);border-color:var(--brand);color:#fff}
.ls1-lossbox{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;margin-top:12px;font-size:15px;color:var(--muted);font-weight:600}
.ls1-lossbox b{color:var(--red);font-size:18px;font-variant-numeric:tabular-nums;transition:color .3s}
.ls1-lossbox.low b{color:var(--green)}
.ls1-lc{min-height:22px}

/* results explorer */
.ls1-x svg{max-height:74vh;max-width:380px;margin:0 auto;display:block}