:root{--bg: #140c08;--panel: #1d130d;--panel-edge: #3a2a1c;--field: #2a1c12;--ink: #f3e7cf;--ink-dim: #bdac8c;--gold: #dcb055;--gold-deep: #9c7628;--good: #7fd69b;--danger: #ee6a55;--khmer: "Noto Sans Khmer", "Khmer Sangam MN", "Khmer OS Siemreap", "Khmer OS", "Leelawadee UI", system-ui, sans-serif;color-scheme:dark}*{box-sizing:border-box}html,body{height:100%;margin:0}body{display:flex;background:var(--bg);color:var(--ink);font:15px/1.75 var(--khmer);overflow:hidden}[hidden]{display:none!important}#stage{position:relative;flex:1;min-width:0;min-height:0}#scene{display:block;width:100%;height:100%;touch-action:none;outline:none}#title{position:absolute;top:16px;left:22px;pointer-events:none;text-shadow:0 2px 12px rgba(0,0,0,.7)}#title h1{margin:0;font:400 30px/1.6 "Moul",var(--khmer);color:var(--gold)}#title p{margin:0;color:var(--ink-dim);font-size:13px}#status{position:absolute;top:20px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:10px;padding:6px 18px;border-radius:999px;background:#140c08cc;border:1px solid var(--panel-edge);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);white-space:nowrap;font-weight:600}#status.check{border-color:var(--danger);color:#ffd9d1}#turnDot,.plate .dot{flex:none;width:14px;height:14px;border-radius:50%;background:#f0e0bb;box-shadow:0 0 0 2px #ffffff2e}#turnDot.dark,.plate .dot.dark{background:#6b2318}#turnDot.thinking{animation:pulse .9s ease-in-out infinite}@keyframes pulse{50%{transform:scale(.6);opacity:.5}}#plates{display:flex;flex-direction:column;gap:6px;padding:10px 12px;border-bottom:1px solid var(--panel-edge)}.plate{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:4px 12px;border-radius:10px;background:var(--field);border:1px solid var(--panel-edge)}.plate.running{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold-deep)}.plate .who{display:flex;flex-direction:column;line-height:1.4;min-width:0}.plate .who b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.plate .who small{color:var(--ink-dim)}.plate time{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums}.plate.low time{color:var(--danger)}#banner{position:absolute;left:50%;bottom:42px;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:2px;padding:16px 28px 20px;border-radius:16px;background:#140c08eb;border:1px solid var(--gold-deep);box-shadow:0 18px 50px #0000008c;text-align:center;max-width:calc(100% - 32px)}#banner strong{font-size:22px;color:var(--gold)}#banner span{color:var(--ink-dim)}#bannerRating{font-weight:700}#bannerRating.up{color:var(--good)}#bannerRating.down{color:var(--danger)}#banner button{margin-top:10px}#panel{width:340px;flex:none;display:flex;flex-direction:column;background:var(--panel);border-left:1px solid var(--panel-edge);min-height:0}#tabs{display:grid;grid-template-columns:repeat(4,auto);border-bottom:1px solid var(--panel-edge)}#tabs button{border:0;border-radius:0;border-bottom:3px solid transparent;background:none;padding:12px 4px 9px;color:var(--ink-dim);font-weight:600;white-space:nowrap}#tabs button[aria-selected=true]{color:var(--gold);border-bottom-color:var(--gold)}.tab{flex:1;display:flex;flex-direction:column;gap:14px;padding:18px;overflow-y:auto;min-height:0}.row{display:flex;gap:10px}.row>*{flex:1}button,select,input{font:inherit;color:var(--ink);background:var(--field);border:1px solid var(--panel-edge);border-radius:10px;padding:7px 12px}button,select{cursor:pointer}input{width:100%}button:hover,select:hover,input:hover{border-color:var(--gold-deep)}button:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--gold);outline-offset:2px}button:disabled,select:disabled{opacity:.45;cursor:default}button.primary,#banner button{background:var(--gold);border-color:var(--gold);color:#24160a;font-weight:700}button.danger{background:#5a1d14;border-color:var(--danger);color:#ffe1db}button.link{align-self:flex-start;border:0;background:none;padding:0;color:var(--gold)}label{display:flex;flex-direction:column;gap:4px}label span,h2{margin:0;font-size:13px;font-weight:600;color:var(--ink-dim)}.lead{margin:0;font-size:17px;font-weight:700;color:var(--ink)}.note{margin:0;font-size:13.5px;color:var(--ink-dim)}.error{margin:0;color:var(--danger);font-weight:600}.badge{display:inline-block;margin-left:8px;padding:0 10px;border-radius:999px;background:#7fd69b26;border:1px solid var(--good);color:var(--good);font-size:12.5px;font-weight:600;vertical-align:middle}#count{margin:0;padding:6px 12px;border-radius:10px;background:#dcb0551f;border:1px solid var(--gold-deep);color:var(--gold);font-weight:600}.moves{display:flex;flex-direction:column;gap:6px;min-height:130px;flex:1}#moves{flex:1;margin:0;padding:0;list-style:none;overflow-y:auto;font-size:14px}#moves li{display:grid;grid-template-columns:2.4em 1fr 1fr;gap:6px;padding:1px 6px;border-radius:6px}#moves li:nth-child(odd){background:#ffffff08}#moves li b{color:var(--ink-dim);font-weight:400}#moves:empty:after{content:"មិនទាន់មានការដើរទេ។";color:var(--ink-dim)}details{border-top:1px solid var(--panel-edge);padding-top:10px}summary{cursor:pointer;color:var(--gold);font-weight:600}table{width:100%;border-collapse:collapse;font-size:13.5px}details th{color:var(--gold);text-align:left;vertical-align:top;padding:4px 10px 4px 0;white-space:nowrap}details td{padding:4px 0;color:var(--ink-dim)}#lessonList,#lessonView,#authForm,#profile{display:flex;flex-direction:column;gap:12px}#lessons,#profileGames{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}#lessons button{width:100%;display:grid;grid-template-columns:2em 1fr auto;align-items:center;gap:8px;text-align:left;padding:9px 12px}#lessons button .n{color:var(--ink-dim)}#lessons button .tick{color:var(--good);font-weight:700}#lessonTitle{font-size:19px;color:var(--gold)}#lessonText{margin:0;font-size:15.5px}#lessonFeedback{margin:0;min-height:1.75em;font-weight:700}#lessonFeedback.good{color:var(--good)}#lessonFeedback.bad{color:var(--danger)}#rankTable th{text-align:left;color:var(--ink-dim);font-weight:600;padding:4px 6px;border-bottom:1px solid var(--panel-edge)}#rankTable td{padding:5px 6px;border-bottom:1px solid rgba(255,255,255,.05)}#rankTable td:nth-child(2){max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}#rankTable td:nth-child(3){color:var(--gold);font-weight:700}#rankTable tr.me td{background:#dcb0551f}#profileStats{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:0}#profileStats div{padding:8px 12px;border-radius:10px;background:var(--field);border:1px solid var(--panel-edge)}#profileStats dt{font-size:12.5px;color:var(--ink-dim)}#profileStats dd{margin:0;font-size:19px;font-weight:700;color:var(--gold)}#profileGames li{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center;padding:5px 10px;border-radius:8px;background:#ffffff08;font-size:14px}#profileGames .win{color:var(--good)}#profileGames .loss{color:var(--danger)}#profileGames li span:nth-child(2){overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media (max-width: 820px){body{flex-direction:column}#panel{width:auto;height:44vh;border-left:0;border-top:1px solid var(--panel-edge);padding-bottom:env(safe-area-inset-bottom)}.tab{padding:14px 16px}#title{top:8px;left:14px}#title h1{font-size:19px}#title p{display:none}#status{top:auto;bottom:10px;font-size:14px;padding:4px 14px}#plates{flex-direction:row;padding:6px 10px}.plate{flex:1;min-width:0;padding:2px 8px;gap:6px}.plate .who small{display:none}.plate time{font-size:16px}#banner{bottom:56px}}@media (prefers-reduced-motion: reduce){#turnDot.thinking{animation:none}}.card{display:flex;flex-direction:column;gap:8px;padding:12px 14px;border-radius:12px;background:var(--field);border:1px solid var(--panel-edge)}#coachView{display:flex;flex-direction:column;gap:12px}#coachTitle{font-size:19px;color:var(--gold)}#coachBox{padding:12px 14px;border-radius:12px;background:var(--field);border:1px solid var(--panel-edge);border-left-width:4px;min-height:5.25em}#coachBox p{margin:0}#coachBox.good{border-left-color:var(--good)}#coachBox.warn{border-left-color:var(--gold)}#coachBox.bad{border-left-color:var(--danger)}#coachText{font-weight:700;font-size:16px}#coachWhy{color:var(--ink-dim)}#coachBetter{color:var(--gold);font-weight:600}#lessons{display:flex;flex-direction:column;gap:8px}#lessons h2{margin-top:6px}dialog{width:min(440px,calc(100vw - 32px));max-height:calc(100vh - 32px);overflow-y:auto;padding:20px;border-radius:16px;border:1px solid var(--gold-deep);background:var(--panel);color:var(--ink)}dialog[open]{display:flex;flex-direction:column;gap:12px}dialog::backdrop{background:#0009}dialog h2{font-size:19px;color:var(--gold)}#castCode{margin:0;text-align:center;font-size:40px;font-weight:700;letter-spacing:.14em;color:var(--gold);font-variant-numeric:tabular-nums}#castAddress{color:var(--ink);word-break:break-all}#tvBar{position:absolute;top:16px;right:22px;display:flex;flex-direction:column;gap:8px;min-width:250px}#tvBar .plate{background:#140c08d1;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}#tvJoin{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;gap:12px;width:min(380px,calc(100% - 32px));padding:24px;border-radius:16px;background:#140c08f0;border:1px solid var(--gold-deep);text-align:center}#tvJoin strong{font-size:22px;color:var(--gold)}#tvJoin input{font-size:30px;text-align:center;letter-spacing:.2em}#exitWide{position:absolute;right:16px;bottom:16px;opacity:.75}body.tv #panel,body.wide #panel{display:none}body.tv #status,body.wide #status{font-size:20px;padding:10px 26px}body.tv #title h1,body.wide #title h1{font-size:38px}