/* Lessons, version 2 (2026-10-12): the designed scenes. Same RMDW palette and type as the rest of the platform. */
.player2 { width: min(1180px, 100%); }
.player2 .win-body.lx { padding: 10px; }
.player2 { margin-top: 0; }
.lx-stage { position: relative; min-height: clamp(400px, calc(100vh - 360px), 580px); background: var(--paper); box-shadow: var(--sunken); overflow: hidden; isolation: isolate;
  background-image: radial-gradient(rgba(27, 21, 24, .05) 1px, transparent 1px); background-size: 18px 18px; }
.lx-stage.dark { background: #120b0e; background-image: radial-gradient(70% 80% at 80% 10%, rgba(177, 30, 47, .45), transparent 60%), radial-gradient(50% 60% at 0% 100%, rgba(224, 184, 92, .16), transparent 70%); color: #fff; }
.lx-scene { position: relative; height: 100%; min-height: inherit; padding: clamp(22px, 3.6vw, 46px); }
.lx-stage h2 { font: 600 clamp(26px, 3.2vw, 40px)/1.06 var(--serif); letter-spacing: -.022em; margin: 0 0 18px; max-width: 22em; }
.lx-stage h2 em, .lx-h em, .lx-h .em { font-style: italic; color: var(--crimson); }
.lx-stage.dark .lx-h .em { color: #ff8f9d; }

/* beats: every [data-b] waits, then arrives */
.lx-stage [data-b] { opacity: 0; transform: translateY(14px); transition: opacity .55s var(--ease), transform .7s var(--ease); }
.lx-stage [data-b].in { opacity: 1; transform: none; }
.lx-stage h2[data-b], .lx-h[data-b] { opacity: 1; transform: none; }
.lx-stage .w { display: inline-block; overflow: hidden; vertical-align: top; padding: 0 .05em .12em 0; margin: 0 -.05em -.12em 0; }
.lx-stage .w > span { display: inline-block; transform: translateY(105%); transition: transform .8s var(--ease); transition-delay: calc(var(--i) * 55ms); }
.lx-stage .in .w > span, .lx-stage .in.w > span { transform: none; }
.lx-stage .w.em > span { font-style: italic; }

/* ---------- open */
.lx-open { display: grid; align-content: center; gap: 14px; min-height: inherit; max-width: 860px; }
.lx-glow { position: absolute; right: -10%; top: -20%; width: 60%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(226, 58, 80, .35), transparent 65%); animation: lxFloat 9s ease-in-out infinite alternate; pointer-events: none; }
@keyframes lxFloat { to { transform: translate(-6%, 8%) scale(1.08); } }
.lx-eye { font: 600 12px/1.4 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin: 0; }
.lx-h { font: 600 clamp(38px, 5.6vw, 72px)/1.02 var(--serif); letter-spacing: -.03em; margin: 0; }
.lx-promise { font-size: clamp(17px, 1.7vw, 21px); line-height: 1.45; color: rgba(255, 255, 255, .82); max-width: 40em; margin: 0; }
.lx-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.lx-chips span { padding: 6px 11px; font: 500 12.5px/1.2 var(--mono); color: #fff; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18); }
.lx-teach { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.lx-teach i, .lx-who i { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; font: 700 19px/1 var(--serif); font-style: normal; color: #fff; background: linear-gradient(135deg, var(--crimson2), var(--crimsonD)); box-shadow: 0 0 0 3px rgba(224, 184, 92, .55); }
.lx-teach span { display: grid; font-size: 13px; color: rgba(255, 255, 255, .7); }
.lx-teach b { font-size: 17px; color: #fff; }
.lx-stamp { position: absolute; right: clamp(18px, 5vw, 60px); bottom: clamp(18px, 5vw, 54px); font: 400 clamp(20px, 2.4vw, 30px)/1 var(--marker); color: var(--gold); border: 3px solid var(--gold); padding: 8px 14px; transform: rotate(-7deg) scale(1.6) !important; opacity: 0; }
.lx-stamp.in { transform: rotate(-7deg) scale(1) !important; opacity: .95; transition: transform .35s cubic-bezier(.3, 1.6, .5, 1), opacity .2s; }

/* ---------- money */
.lx-money { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(18px, 3vw, 40px); align-items: center; min-height: inherit; }
.lx-ledger { display: grid; gap: 8px; }
.lx-row { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; padding: 10px 14px; background: #fff; box-shadow: var(--sunken); font-size: 16px; }
.lx-row b { font: 700 24px/1 var(--serif); }
.lx-row.lose { background: #fff3f3; box-shadow: var(--sunken), inset 3px 0 0 var(--crimson); }
.lx-row.lose u { text-decoration-color: var(--crimson); text-decoration-thickness: 2px; }
.lx-row.lose b { color: var(--crimson); }
.lx-total { display: grid; justify-items: start; margin-top: 6px; padding: 14px 16px; color: #fff; background: linear-gradient(135deg, var(--crimson), var(--crimsonD)); box-shadow: var(--redraise); }
.lx-total small { font: 600 11.5px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; opacity: .8; }
.lx-total b { font: 700 clamp(40px, 5vw, 64px)/1 var(--serif); letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.lx-line { margin: 6px 0 0; font: italic 500 17px/1.45 var(--serif); color: var(--dk); }
.lx-line.big { font-size: 22px; }
.lx-dotwrap { display: grid; gap: 10px; align-content: center; }
.lx-dots { display: grid; grid-template-columns: repeat(12, 1fr); gap: 8px; width: 100%; max-width: 460px; }
.lx-dots i { aspect-ratio: 1; border-radius: 50%; background: var(--dk); opacity: 0; transform: scale(.3); transition: opacity .3s, transform .4s var(--ease), background .4s; transition-delay: calc(var(--d) * 12ms); }
.lx-dots.in i { opacity: .85; transform: none; }
.lx-dots.cold i.gone { background: var(--crimson2); box-shadow: 0 0 0 4px rgba(226, 58, 80, .25); animation: lxCold 1.4s var(--ease) .2s forwards; }
@keyframes lxCold { 35% { transform: scale(1.7); } 100% { transform: scale(1); opacity: .55; } }
.lx-dotkey { font: 500 12.5px/1.45 var(--mono); color: var(--mut); margin: 0; }
.lx-dotkey b { color: var(--crimson); }

/* ---------- rhythm */
.lx-rhythm { display: grid; align-content: center; min-height: inherit; gap: 10px; }
.lx-track { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding-top: 34px; }
.lx-rail { position: absolute; left: 9px; right: 0; top: 13px; height: 3px; background: var(--crimson); transform-origin: left; transform: scaleX(0) !important; opacity: 1 !important; transition: transform 1.6s var(--ease) !important; }
.lx-rail.in { transform: scaleX(1) !important; }
.lx-node { position: relative; display: grid; gap: 4px; }
.lx-node .dot { position: absolute; top: -27px; left: 0; width: 18px; height: 18px; border-radius: 50%; background: var(--crimson); box-shadow: 0 0 0 5px rgba(177, 30, 47, .18); }
.lx-node .day { font: 600 12px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--crimson); }
.lx-node b { font: 600 20px/1.2 var(--serif); }
.lx-node .bub { margin: 4px 0 0; padding: 10px 12px; font-size: 14px; line-height: 1.4; background: #fff; box-shadow: var(--sunken); border-radius: 0 12px 12px 12px; }
.lx-rules { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 0; padding: 0; }
.lx-rules li { display: flex; align-items: center; gap: 8px; padding: 9px 13px; background: #fff; box-shadow: var(--raised); font-weight: 600; }
.lx-rules i, .lx-ticks i { width: 18px; height: 18px; display: grid; place-items: center; background: var(--face); box-shadow: var(--sunken); }
.lx-rules li.in i::after, .lx-ticks li.in i::after { content: "✓"; color: var(--crimson); font-weight: 800; font-size: 14px; animation: lxPop .4s cubic-bezier(.3, 1.6, .5, 1) .2s backwards; }
@keyframes lxPop { from { transform: scale(0); } }

/* ---------- phone */
.lx-phonewrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 360px); gap: clamp(18px, 3vw, 44px); align-items: center; min-height: inherit; }
.lx-ticks { list-style: none; display: grid; gap: 10px; margin: 8px 0 0; padding: 0; }
.lx-ticks li { display: flex; align-items: center; gap: 10px; font: 600 17px/1.3 var(--sans); }
.lx-phone { justify-self: center; width: 100%; max-width: 340px; border-radius: 36px; padding: 12px; background: #17110f; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .6), inset 0 0 0 2px #3a2f2b; }
.lx-phone__top { display: flex; align-items: center; gap: 10px; padding: 14px 14px 12px; color: #fff; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.lx-phone__top i { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; font-style: normal; font-weight: 700; background: #4a3f3a; }
.lx-phone__top span { display: grid; line-height: 1.2; }
.lx-phone__top small { font-size: 11.5px; color: rgba(255, 255, 255, .55); }
.lx-thread { display: grid; gap: 9px; align-content: start; min-height: 360px; padding: 14px 10px 18px; background: #fbf7f2; border-radius: 0 0 26px 26px; }
.lx-thread .msg { position: relative; margin: 0; max-width: 86%; padding: 9px 12px; font-size: 14px; line-height: 1.42; border-radius: 16px; }
.lx-thread .in { justify-self: start; background: #e9e3dc; border-bottom-left-radius: 4px; }
.lx-thread .out { justify-self: end; color: #fff; border-bottom-right-radius: 4px; }
.lx-thread .weak { background: #8d8580; transition: opacity .5s, filter .5s; }
.lx-thread .weak.struck { opacity: .55; text-decoration: line-through; text-decoration-color: var(--crimson2); text-decoration-thickness: 2px; }
.lx-x { position: absolute; left: 50%; top: 50%; padding: 2px 8px; font: 400 18px/1.1 var(--marker); color: var(--crimson); background: rgba(255, 253, 248, .92); border: 2px solid var(--crimson); transform: translate(-50%, -50%) rotate(-8deg) scale(.4); opacity: 0; transition: transform .3s cubic-bezier(.3, 1.6, .5, 1), opacity .2s; white-space: nowrap; }
.weak.struck .lx-x { transform: translate(-50%, -50%) rotate(-8deg); opacity: 1; text-decoration: none; }
.lx-thread .strong { background: linear-gradient(135deg, var(--crimson2), var(--crimson)); min-height: 1.4em; }
.lx-thread .strong mark { background: rgba(255, 230, 150, .4); color: #fff; padding: 0 2px; animation: lxMark .9s ease; }
@keyframes lxMark { from { background: rgba(255, 230, 150, 0); } }
.lx-thread .typing { justify-self: end; display: flex; gap: 4px; padding: 12px 14px; background: #e9e3dc; }
.lx-thread .typing i { width: 6px; height: 6px; border-radius: 50%; background: #8d8580; animation: lxDot 1s infinite; }
.lx-thread .typing i:nth-child(2) { animation-delay: .15s; } .lx-thread .typing i:nth-child(3) { animation-delay: .3s; }
.lx-thread .typing.gone { display: none; }
@keyframes lxDot { 50% { transform: translateY(-4px); opacity: .4; } }

/* ---------- prompt */
.lx-prompt { display: grid; align-content: center; min-height: inherit; }
.lx-cols { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.lx-code { background: #15100f; color: #f3ece4; box-shadow: 0 20px 40px -24px rgba(0, 0, 0, .6); }
.lx-code__bar { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 8px 10px 8px 14px; font: 500 12px/1.3 var(--mono); color: rgba(255, 255, 255, .6); border-bottom: 1px solid rgba(255, 255, 255, .1); }
.lx-code pre { margin: 0; padding: 14px 16px 18px; max-height: 340px; overflow: auto; white-space: pre-wrap; font: 13px/1.6 var(--mono); }
.lx-code mark { color: inherit; background: transparent; box-shadow: inset 0 -2px 0 rgba(224, 184, 92, .0); transition: background .5s, box-shadow .5s; transition-delay: calc(var(--m) * 380ms); }
.lx-code.lit mark { background: rgba(224, 184, 92, .28); box-shadow: inset 0 -2px 0 var(--gold); }
.lx-steps { list-style: none; display: grid; gap: 8px; margin: 0; padding: 0; counter-reset: st; }
.lx-steps button { display: grid; grid-template-columns: 22px 1fr; gap: 10px; width: 100%; padding: 10px 12px; text-align: left; font-size: 14px; line-height: 1.4; background: #fff; border: 0; box-shadow: var(--raised); cursor: pointer; }
.lx-steps button i { width: 20px; height: 20px; margin-top: 1px; background: var(--face); box-shadow: var(--sunken); display: grid; place-items: center; }
.lx-steps button.done i::after { content: "✓"; color: var(--green); font-weight: 800; }
.lx-steps button.done span { color: var(--mut); text-decoration: line-through; text-decoration-color: rgba(31, 107, 58, .5); }

/* ---------- result */
.lx-result { display: grid; align-content: center; min-height: inherit; }
.lx-msgs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.lx-msgs article { display: grid; align-content: start; gap: 8px; padding: 14px 16px 16px; background: #fff; box-shadow: var(--raised), 0 18px 30px -24px rgba(0, 0, 0, .5); }
.lx-msgs header { display: flex; justify-content: space-between; gap: 8px; font: 600 11.5px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.lx-msgs .when { color: var(--crimson); }
.lx-msgs .ch { color: var(--mut); }
.lx-msgs p { margin: 0; font-size: 15px; line-height: 1.5; }
.lx-note { margin: 16px 0 0; font: 500 12.5px/1.4 var(--mono); color: var(--mut); }

/* ---------- check */
.lx-check { display: grid; align-content: start; gap: 6px; max-width: 880px; }
.lx-check textarea { width: 100%; min-height: 150px; padding: 12px; font: 14px/1.5 var(--sans); background: #fff; border: 0; box-shadow: var(--sunken); resize: vertical; }
.lx-rubric { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; margin: 14px 0 0; padding: 0; }
.lx-rubric li { display: grid; grid-template-columns: 22px 1fr; gap: 2px 10px; padding: 10px 12px; background: #fff; box-shadow: var(--raised); }
.lx-rubric li i { grid-row: span 2; width: 20px; height: 20px; background: var(--face); box-shadow: var(--sunken); display: grid; place-items: center; font-style: normal; }
.lx-rubric li span { font-size: 13px; color: var(--mut); }
.lx-rubric li.wait i::after { content: "…"; }
.lx-rubric li.pass i::after { content: "✓"; color: var(--green); font-weight: 800; animation: lxPop .35s cubic-bezier(.3, 1.6, .5, 1); }
.lx-rubric li.fail i::after { content: "✗"; color: var(--crimson); font-weight: 800; animation: lxPop .35s cubic-bezier(.3, 1.6, .5, 1); }
.lx-rubric li.pass { box-shadow: var(--raised), inset 3px 0 0 var(--green); }
.lx-rubric li.fail { box-shadow: var(--raised), inset 3px 0 0 var(--crimson); }
.lx-check .summary { margin-top: 10px; font: italic 500 16px/1.5 var(--serif); }

/* ---------- done */
.lx-done { display: grid; justify-items: start; align-content: center; gap: 14px; min-height: inherit; }
.lx-badge { display: grid; place-items: center; align-content: center; width: 150px; height: 150px; border-radius: 50%; color: var(--dk); background: radial-gradient(circle at 35% 30%, #fff1c9, var(--gold) 55%, #a8812f); box-shadow: 0 0 0 6px rgba(224, 184, 92, .25), 0 20px 50px -20px rgba(224, 184, 92, .8); transform: rotate(-8deg) scale(.4) !important; }
.lx-badge.in { transform: rotate(-8deg) scale(1) !important; transition: transform .6s cubic-bezier(.3, 1.6, .5, 1), opacity .3s; }
.lx-badge b { font: 700 48px/1 var(--serif); font-variant-numeric: tabular-nums; }
.lx-badge small { font: 600 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.lx-burst { position: absolute; left: 95px; top: 50%; width: 0; height: 0; pointer-events: none; }
.lx-burst i { position: absolute; width: 8px; height: 14px; background: var(--gold); transform: rotate(var(--a)) translateY(0); opacity: 0; animation: lxBurst 1.3s var(--ease) forwards; animation-delay: calc(400ms + var(--d)); }
.lx-burst i:nth-child(3n) { background: var(--crimson2); } .lx-burst i:nth-child(4n) { background: #fff; width: 6px; height: 6px; border-radius: 50%; }
@keyframes lxBurst { 10% { opacity: 1; } 100% { transform: rotate(var(--a)) translateY(-190px); opacity: 0; } }

/* ---------- captions, start button, controls */
.lx-cc { min-height: 54px; margin-top: 8px; padding: 8px 14px; font: 500 17px/1.5 var(--sans); text-align: center; color: rgba(27, 21, 24, .45); background: var(--paper); box-shadow: var(--sunken); }
.lx-cc .said { color: var(--dk); }
.lx-cc .now { color: var(--crimson); font-weight: 700; }
.lx-start { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); z-index: 5; padding: 18px 28px; font: 700 20px/1 var(--sans); color: #fff; background: var(--crimson); border: 0; box-shadow: var(--redraise), 0 0 0 10px rgba(226, 58, 80, .2); cursor: pointer; animation: lxPulse 1.6s ease-in-out infinite; }
@keyframes lxPulse { 50% { box-shadow: var(--redraise), 0 0 0 18px rgba(226, 58, 80, .08); } }
.lx-bar { display: grid; gap: 8px; margin-top: 8px; }
.lx-chapters { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 4px; }
.lx-chapters button { display: grid; gap: 4px; padding: 0; border: 0; background: none; cursor: pointer; text-align: left; }
.lx-chapters i { height: 6px; background: var(--face); box-shadow: var(--sunken); position: relative; overflow: hidden; }
.lx-chapters i::after { content: ""; position: absolute; inset: 0; background: var(--crimson); transform-origin: left; transform: scaleX(var(--p, 0)); }
.lx-chapters span { font: 500 10.5px/1.2 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mut); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lx-chapters .on span { color: var(--crimson); font-weight: 700; }
.lx-ctl { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.lx-ctl #lxNext.nudge { animation: lxPulse 1.6s ease-in-out infinite; }
.lx-who { display: inline-flex; align-items: center; gap: 8px; margin-left: 6px; font: 500 12.5px/1.2 var(--mono); color: var(--mut); }
.lx-who i { width: 28px; height: 28px; font-size: 13px; box-shadow: 0 0 0 2px rgba(224, 184, 92, .55); }
.lx-tools { display: inline-flex; gap: 6px; margin-left: auto; }
.lx-tools .btn.off { opacity: .55; }

@media (max-width: 820px) {
  .lx-stage { min-height: 0; }
  .lx-scene { min-height: 0; padding: 20px 16px 24px; }
  .lx-money, .lx-phonewrap, .lx-cols { grid-template-columns: 1fr; }
  .lx-track { grid-template-columns: 1fr; padding-top: 0; padding-left: 26px; }
  .lx-rail { display: none; }
  .lx-node .dot { top: 4px; left: -26px; }
  .lx-msgs { grid-template-columns: 1fr; }
  .lx-stamp { position: static; justify-self: start; margin-top: 8px; }
  .lx-chapters span { display: none; }
  .lx-who { display: none; }
  .lx-cc { font-size: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  .lx-stage [data-b], .lx-stage .w > span, .lx-dots i { transition: none; }
  .lx-glow, .lx-start, .lx-ctl #lxNext.nudge { animation: none; }
}

/* ---------- stakes */
.lx-stakes { display: grid; align-content: center; min-height: inherit; gap: 6px; }
.lx-cards3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 18px; }
.lx-stat { display: grid; gap: 6px; padding: 18px 18px 20px; background: #fff; box-shadow: var(--raised), 0 18px 30px -24px rgba(0, 0, 0, .5); border-top: 4px solid var(--crimson); }
.lx-stat small { font: 600 11.5px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mut); }
.lx-stat b { font: 700 clamp(26px, 2.8vw, 38px)/1.05 var(--serif); letter-spacing: -.02em; color: var(--crimson); }
.lx-stat span { font-size: 14.5px; line-height: 1.45; color: var(--dk); }

/* ---------- flow */
.lx-flow { display: grid; align-content: center; min-height: inherit; gap: 10px; }
.lx-flowrow { position: relative; display: grid; grid-template-columns: repeat(var(--n), minmax(0, 1fr)); gap: 16px; padding-top: 34px; }
.lx-fnode { position: relative; display: grid; gap: 4px; align-content: start; padding: 14px 14px 16px; background: #fff; box-shadow: var(--raised); }
.lx-fnode .num { position: absolute; top: -48px; left: 0; display: grid; place-items: center; width: 30px; height: 30px; font: 700 14px/1 var(--mono); color: #fff; background: var(--crimson); box-shadow: 0 0 0 5px rgba(177, 30, 47, .16); }
.lx-fnode .tag { font: 600 11.5px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--crimson); }
.lx-fnode b { font: 600 19px/1.2 var(--serif); }
.lx-fnode p { margin: 2px 0 0; font-size: 14px; line-height: 1.45; color: var(--mut); }
.lx-flowrow .lx-rail { top: 18px; left: 15px; }

/* ---------- chat (a Claude window) */
.lx-claude { justify-self: center; width: 100%; max-width: 440px; background: #fbf7f2; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .55), inset 0 0 0 1px #d9cfc2; border-radius: 14px; overflow: hidden; }
.lx-claude__top { display: flex; align-items: center; gap: 8px; padding: 11px 14px; background: #fff; border-bottom: 1px solid #e6dccd; font-size: 14px; }
.lx-claude__top .dot { width: 12px; height: 12px; border-radius: 50%; background: #d97757; }
.lx-claude__top small { margin-left: auto; font: 500 11.5px/1 var(--mono); color: var(--mut); }
.lx-claude__body { display: grid; gap: 10px; padding: 14px; min-height: 340px; align-content: start; }
.lx-claude__body small { display: block; margin-bottom: 3px; font: 600 10.5px/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mut); }
.lx-claude__body p { margin: 0; font-size: 14px; line-height: 1.5; white-space: pre-wrap; }
.lx-claude .you { position: relative; justify-self: end; max-width: 92%; padding: 10px 12px; background: #efe7dc; border-radius: 12px; }
.lx-claude .you.weak { transition: opacity .5s; }
.lx-claude .you.weak.struck { opacity: .6; }
.lx-claude .you.weak.struck p { text-decoration: line-through; text-decoration-color: var(--crimson2); text-decoration-thickness: 2px; }
.lx-claude .you.weak.struck .lx-x { transform: translate(-50%, -50%) rotate(-8deg); opacity: 1; }
.lx-claude .you.strong { background: #f6e6d9; box-shadow: inset 3px 0 0 var(--crimson); }
.lx-claude .ai { padding: 2px 4px; }
.lx-claude .ai p { min-height: 1.5em; }
.lx-file { display: inline-block; margin-bottom: 6px; padding: 4px 8px; font: 500 12px/1.3 var(--mono); background: #fff; border: 1px solid #d9cfc2; border-radius: 6px; }

/* ---------- result: document and tool */
.lx-doc { max-width: 760px; padding: 20px 24px 22px; background: #fff; box-shadow: var(--raised), 0 24px 40px -28px rgba(0, 0, 0, .55); }
.lx-doc header { display: flex; align-items: center; gap: 10px; padding-bottom: 12px; margin-bottom: 8px; border-bottom: 2px solid var(--dk); font: 600 20px/1.2 var(--serif); }
.lx-doc section { padding: 8px 0; border-bottom: 1px solid #eee4d6; }
.lx-doc h4 { margin: 0 0 4px; font: 600 11.5px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--crimson); }
.lx-doc ul { margin: 0; padding-left: 18px; font-size: 14.5px; line-height: 1.5; }
.lx-toolwrap { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 24px; align-items: center; }
.lx-tool { display: grid; gap: 10px; padding: 18px; background: #fff; border-radius: 12px; box-shadow: 0 24px 40px -26px rgba(0, 0, 0, .6), inset 0 0 0 1px #e2d8ca; }
.lx-tool header { display: grid; gap: 2px; padding-bottom: 8px; border-bottom: 1px solid #eee4d6; }
.lx-tool header b { font: 600 19px/1.2 var(--serif); }
.lx-tool header small { font: 500 11.5px/1.3 var(--mono); color: var(--mut); }
.lx-tool label { display: grid; gap: 4px; font-size: 13px; color: var(--mut); }
.lx-tool input { padding: 9px 10px; font: 15px var(--sans); color: var(--dk); background: #faf6f0; border: 1px solid #ddd2c3; border-radius: 6px; }
.lx-tool__out { padding: 12px 14px; color: #fff; background: linear-gradient(135deg, var(--crimson), var(--crimsonD)); border-radius: 8px; }
.lx-tool__out small { display: block; font: 600 11px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; opacity: .8; }
.lx-tool__out b { font: 700 22px/1.25 var(--serif); }
.lx-msgs--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.lx-msgs--5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.lx-msgs--4 p, .lx-msgs--5 p { font-size: 14px; }
@media (max-width: 820px) {
  .lx-cards3, .lx-flowrow, .lx-toolwrap, .lx-msgs--4, .lx-msgs--5 { grid-template-columns: 1fr; }
  .lx-flowrow { padding-top: 0; padding-left: 0; }
  .lx-fnode .num { position: static; margin-bottom: 4px; }
}

/* polish (2026-10-12): chat stays inside the screen and scrolls as Claude types; stamp beside short asks;
   documents in two columns; long tool outputs in body type */
.lx-claude__body { max-height: min(470px, calc(100vh - 380px)); overflow: auto; scroll-behavior: smooth; }
.lx-claude .you.weak { margin-left: 120px; }
.lx-claude .you.weak .lx-x { left: auto; right: calc(100% + 10px); top: 50%; transform: translateY(-50%) rotate(-8deg) scale(.4); }
.lx-claude .you.weak.struck .lx-x { transform: translateY(-50%) rotate(-8deg); }
.lx-doc { max-width: none; }
.lx-doc .lx-doc__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 28px; }
.lx-tool__out b { font: 600 16px/1.45 var(--sans); }
@media (max-width: 820px) { .lx-doc .lx-doc__grid { grid-template-columns: 1fr; } .lx-claude .you.weak { margin-left: 0; } .lx-claude .you.weak .lx-x { right: 8px; } }

/* Quick check (Partner Academy): multiple choice, scored on the server. */
.lx-quiz { display: grid; align-content: start; gap: 8px; max-width: 920px; }
.lx-quiz__lead { margin: 0 0 6px; color: var(--mut); }
.lx-qs { display: grid; gap: 14px; }
.lx-q { margin: 0; padding: 14px 16px 12px; border: 0; background: #fff; box-shadow: var(--raised); }
.lx-q legend { display: flex; gap: 10px; align-items: baseline; float: left; width: 100%; margin: 0 0 10px; padding: 0; font: 600 17px/1.35 var(--sans); color: var(--text); }
.lx-q legend span { flex: none; display: grid; place-items: center; width: 24px; height: 24px; font: 600 12px/1 var(--mono); color: #fff; background: var(--crimson); }
.lx-q label { clear: both; display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: center; padding: 8px 10px; margin: 0 0 6px; cursor: pointer; background: var(--lt); box-shadow: var(--sunken); }
.lx-q label:hover { background: #fff7ee; }
.lx-q input { position: absolute; opacity: 0; pointer-events: none; }
.lx-q label i { width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: var(--sunken); }
.lx-q input:checked + i { background: radial-gradient(circle, var(--crimson) 0 45%, #fff 50%); }
.lx-q input:focus-visible + i { outline: 2px solid var(--crimson); outline-offset: 2px; }
.lx-q label span { font: 15px/1.45 var(--sans); color: var(--text); }
.lx-q.right { box-shadow: var(--raised), inset 4px 0 0 var(--green); }
.lx-q.right legend::after { content: "✓ Right"; margin-left: auto; font: 600 12px/1 var(--mono); color: var(--green); }
.lx-q.wrong { box-shadow: var(--raised), inset 4px 0 0 var(--crimson); }
.lx-q.wrong legend::after { content: "✗ Not quite"; margin-left: auto; font: 600 12px/1 var(--mono); color: var(--crimson); }
.lx-q__why { clear: both; margin: 6px 0 0; padding: 8px 10px; font: 14px/1.45 var(--sans); color: var(--crimsonD); background: #fff3f3; }
.lx-quiz .check-row { margin-top: 4px; }
/* A long quick check scrolls inside the stage, so Next and the controls stay on screen. */
.lx-stage.lx-k-quiz { height: clamp(400px, calc(100vh - 360px), 580px); overflow-y: auto; }
.lx-stage.lx-k-quiz .lx-scene { height: auto; }
@media (max-width: 760px) { .lx-stage.lx-k-quiz { height: auto; max-height: calc(100vh - 300px); } }