:root{
  --bg:#f5f5f7; --card:#ffffff; --ink:#1d1d1f; --ink2:#424245; --muted:#6e6e73; --faint:#86868b; --line:rgba(0,0,0,.08); --line2:rgba(0,0,0,.05);
  --blue:#0071e3; --blue2:#0077ed; --green:#34c759; --red:#ff3b30;
  --light:#eef1f5; --dark:#9fb2c4;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 8px 28px rgba(0,0,0,.06);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --size:min(calc(100vw - 520px), calc(100vh - 150px), 680px);
  --k-brilliant:#26c2a3; --k-great:#749bbf; --k-best:#81b64c; --k-excellent:#81b64c; --k-good:#95af8a; --k-book:#a88865; --k-inaccuracy:#f7c631; --k-mistake:#ffa459; --k-miss:#ff7769; --k-blunder:#fa412d;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.47 var(--font);-webkit-font-smoothing:antialiased;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
button:disabled{opacity:.4;cursor:default}
.hidden{display:none !important}
h1,h2,h3{margin:0;letter-spacing:-.025em;font-weight:700}

/* top bar */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;padding:12px 28px;background:rgba(245,245,247,.78);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line2)}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:19px;letter-spacing:-.03em}
.logo img{width:28px;height:28px}
.top-actions{display:flex;gap:8px;align-items:center}
.pill-btn{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 12px;border-radius:999px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);font-size:13px;font-weight:500;color:var(--ink2)}
.pill-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pill-btn.subtle{background:transparent;box-shadow:none;color:var(--muted)}
.pill-btn.off{color:var(--faint)}
.pill-btn .off-only{display:none}.pill-btn.off .off-only{display:inline}.pill-btn.off .on-only{display:none}
.pill-btn.speaking{color:var(--blue);box-shadow:inset 0 0 0 1.5px var(--blue)}

/* layout */
.page{max-width:1080px;margin:0 auto;padding:36px 28px 80px}
.card{background:var(--card);border-radius:22px;box-shadow:var(--shadow);padding:24px}
.eyebrow{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}
.sub{color:var(--muted);margin:6px 0 0}
.fine{color:var(--faint);font-size:12.5px;margin:8px 0 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:999px;background:var(--blue);color:#fff;font-weight:600;font-size:15px;transition:background .2s,transform .1s}
.btn:hover{background:var(--blue2)}.btn:active{transform:scale(.98)}
.btn.big{height:52px;padding:0 30px;font-size:17px}
.btn.ghost{background:rgba(0,113,227,.08);color:var(--blue)}
.btn.ghost:hover{background:rgba(0,113,227,.14)}
.btn.gray{background:#e8e8ed;color:var(--ink)}
.btn.gray:hover{background:#dedee3}
.btn.sm{height:34px;padding:0 14px;font-size:13.5px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.view{animation:in .5s cubic-bezier(.2,.8,.2,1) both}
@keyframes in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* home */
.hero{text-align:center;padding:56px 0 30px}
.hero h1{font-size:56px;line-height:1.05;letter-spacing:-.04em}
.hero h1 span{background:linear-gradient(90deg,#0071e3,#26c2a3);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:20px;color:var(--muted);margin:14px auto 0;max-width:620px}
.search{max-width:680px;margin:34px auto 0;position:relative}
.search textarea{width:100%;min-height:62px;max-height:220px;resize:none;border:0;border-radius:20px;background:#fff;box-shadow:var(--shadow),inset 0 0 0 1px var(--line);padding:19px 140px 19px 24px;font:17px/1.4 var(--font);color:var(--ink);outline:none;transition:box-shadow .2s}
.search textarea:focus{box-shadow:var(--shadow),inset 0 0 0 2px var(--blue)}
.search .btn{position:absolute;right:9px;top:9px}
.hints{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.chip{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);font-size:13px;color:var(--ink2)}
.chip img{width:20px;height:20px;border-radius:50%;object-fit:cover}
.chip:hover{box-shadow:inset 0 0 0 1px rgba(0,0,0,.18)}
.msg{max-width:680px;margin:14px auto 0;padding:12px 16px;border-radius:14px;background:#fff1f0;color:#b3261e;font-size:14px;text-align:center}
.section-title{display:flex;align-items:baseline;justify-content:space-between;margin:44px 0 14px}
.section-title h2{font-size:24px}
.section-title a{color:var(--blue);font-size:14px;font-weight:500}

/* avatars */
.av{display:inline-grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,#d6dde6,#aab6c4);color:#fff;font-weight:700;overflow:hidden;flex:none;position:relative}
.av img{width:100%;height:100%;object-fit:cover}
.av.w{background:linear-gradient(135deg,#f0f0f3,#c9ccd3);color:#555}
.av.b{background:linear-gradient(135deg,#55595f,#22252a)}
.av.s32{width:32px;height:32px;font-size:13px}.av.s44{width:44px;height:44px;font-size:17px}.av.s64{width:64px;height:64px;font-size:24px}.av.s96{width:96px;height:96px;font-size:36px}.av.s120{width:120px;height:120px;font-size:44px}
.av .sidepip{position:absolute;right:2px;bottom:2px;width:22%;height:22%;border-radius:50%;box-shadow:0 0 0 2px #fff}
.av .sidepip.w{background:#fff;box-shadow:0 0 0 2px #fff,0 0 0 3px #aaa}.av .sidepip.b{background:#222}

/* game cards / lists */
.glist{display:flex;flex-direction:column}
.gitem{display:flex;align-items:center;gap:14px;padding:12px 6px;border-bottom:1px solid var(--line2);border-radius:12px;transition:background .15s}
.gitem:last-child{border-bottom:0}
.gitem:hover{background:#f7f7f9}
.gitem .main{flex:1;min-width:0;display:flex;flex-direction:column}
.gitem .main b{font-weight:600}
.gitem .main small{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gitem .side{display:flex;flex-direction:column;align-items:flex-end;font-size:13px;color:var(--muted)}
.gitem .side b{color:var(--ink);font-size:15px}
.res{display:inline-grid;place-items:center;min-width:34px;height:26px;padding:0 8px;border-radius:8px;font-size:12.5px;font-weight:700}
.res.win{background:#e8f7ee;color:#1f8a4c}.res.loss{background:#fdecea;color:#c4321f}.res.draw{background:#f0f0f3;color:#555}
.go{color:var(--blue);font-size:13px;font-weight:600}

/* player page */
.phead{display:flex;align-items:center;gap:22px;margin-bottom:22px}
.phead h1{font-size:40px}
.phead .ratings{display:flex;gap:18px;margin-top:6px;flex-wrap:wrap}
.phead .ratings div{display:flex;flex-direction:column}
.phead .ratings b{font-size:20px}
.phead .ratings small{color:var(--muted);font-size:12px;text-transform:capitalize}
.seg{display:inline-flex;background:#e8e8ed;border-radius:12px;padding:3px;gap:2px}
.seg button,.seg a{height:32px;padding:0 16px;border-radius:9px;font-size:13.5px;font-weight:500;color:var(--ink2);display:inline-flex;align-items:center}
.seg .on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
select{height:36px;border-radius:10px;border:0;background:#fff;box-shadow:inset 0 0 0 1px var(--line);padding:0 12px;font:14px var(--font);color:var(--ink)}
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin:18px 0}
.stat{background:#fff;border-radius:18px;padding:16px 18px;box-shadow:var(--shadow)}
.stat b{display:block;font-size:28px;letter-spacing:-.03em}
.stat small{color:var(--muted);font-size:12.5px}
.oplist div{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px solid var(--line2);font-size:14px}
.oplist div:last-child{border:0}
.oplist em{font-style:normal;color:var(--muted);white-space:nowrap}

/* board */
.board-frame{position:relative;width:100%;height:100%;border-radius:14px;overflow:visible;box-shadow:0 2px 6px rgba(0,0,0,.06),0 20px 50px rgba(30,40,60,.14)}
.board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);width:100%;height:100%;border-radius:14px;overflow:hidden;touch-action:none;user-select:none;-webkit-user-select:none}
.sq{position:relative;background:var(--light)}
.sq.d{background:var(--dark)}
.sq::before{content:"";position:absolute;inset:0;pointer-events:none}
.sq.last::before{background:rgba(255,214,10,.38)}
.sq.sel::before{background:rgba(0,113,227,.25)}
.sq.check::before{background:radial-gradient(circle,rgba(255,59,48,.9) 0,rgba(255,59,48,.45) 40%,transparent 72%)}
.sq.move::after{content:"";position:absolute;left:50%;top:50%;width:26%;height:26%;transform:translate(-50%,-50%);border-radius:50%;background:rgba(0,0,0,.14);pointer-events:none}
.sq.cap::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(transparent 0 78%,rgba(0,0,0,.16) 79%)}
.sq.hover{box-shadow:inset 0 0 0 4px rgba(255,255,255,.85)}
.coord{position:absolute;font:600 11px var(--font);pointer-events:none;color:var(--dark)}
.sq.d .coord{color:var(--light)}
.coord.r{top:3%;left:5%}.coord.f{bottom:2%;right:6%}
.pc{position:absolute;inset:0;background:center/90% no-repeat;z-index:2;cursor:grab;will-change:transform;filter:drop-shadow(0 2px 2px rgba(0,0,0,.18))}
.pc.lifted{opacity:.3}
.drag-ghost{position:fixed;z-index:60;pointer-events:none;transform:translate(-50%,-55%);background:center/90% no-repeat;filter:drop-shadow(0 12px 14px rgba(0,0,0,.25))}
.arrows{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:4}
.arrows line{stroke-width:18;stroke-linecap:round}
.badge{position:absolute;top:-12%;right:-12%;z-index:6;width:44%;height:44%;min-width:22px;min-height:22px;border-radius:50%;display:grid;place-items:center;font:800 clamp(10px,1.25vw,16px)/1 var(--font);color:#fff;box-shadow:0 2px 6px rgba(0,0,0,.25),0 0 0 2px #fff;pointer-events:none;animation:pop .35s cubic-bezier(.3,1.6,.5,1) both}
@keyframes pop{from{transform:scale(.2);opacity:0}to{transform:none;opacity:1}}
.veil{position:absolute;inset:0;z-index:8;background:rgba(255,255,255,.6);backdrop-filter:blur(4px);display:grid;place-items:center;border-radius:14px}
.promo-pop{display:flex;gap:8px;background:#fff;padding:12px;border-radius:18px;box-shadow:var(--shadow)}
.promo-pop button{width:calc(var(--size)/8);height:calc(var(--size)/8);border-radius:12px;background:#f2f2f5 center/80% no-repeat}

/* class badges */
.k-brilliant{background:var(--k-brilliant)}.k-great{background:var(--k-great)}.k-best{background:var(--k-best)}.k-excellent{background:var(--k-excellent)}.k-good{background:var(--k-good)}
.k-book{background:var(--k-book)}.k-inaccuracy{background:var(--k-inaccuracy)}.k-mistake{background:var(--k-mistake)}.k-miss{background:var(--k-miss)}.k-blunder{background:var(--k-blunder)}
.kb{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;color:#fff;font:800 12px/1 var(--font);flex:none}
.kb.lg{width:34px;height:34px;font-size:15px}
.kb.xl{width:52px;height:52px;font-size:21px}
.kt-brilliant{color:var(--k-brilliant)}.kt-great{color:var(--k-great)}.kt-best,.kt-excellent{color:#5d9a2c}.kt-good{color:#6b8a5c}.kt-book{color:var(--k-book)}.kt-inaccuracy{color:#c99a00}.kt-mistake{color:#e57d1f}.kt-miss{color:#ea5a49}.kt-blunder{color:var(--k-blunder)}

/* game: analysing */
.gwrap{display:grid;grid-template-columns:auto minmax(330px,400px);gap:36px;justify-content:center;align-items:start;padding:28px 28px 60px}
.bcol{display:flex;flex-direction:column;gap:10px}
.bplayer{display:flex;align-items:center;gap:10px;height:40px}
.bplayer b{font-weight:600}.bplayer small{color:var(--muted)}
.brow{display:flex;gap:12px}
.bhost{width:var(--size);height:var(--size)}
.evalbar{width:14px;border-radius:7px;background:#3a3d42;position:relative;overflow:hidden;flex:none}
.eval-fill{position:absolute;left:0;right:0;bottom:0;height:50%;background:#fff;transition:height .6s cubic-bezier(.2,.7,.2,1)}
.evalbar.flip .eval-fill{bottom:auto;top:0}
.eval-num{position:absolute;left:50%;bottom:4px;transform:translateX(-50%) rotate(180deg);writing-mode:vertical-rl;font:700 9px var(--font);color:#333;white-space:nowrap}
.evalbar.black-ahead .eval-num{bottom:auto;top:4px;color:#eee}
.evalbar.flip .eval-num{bottom:auto;top:4px}
.evalbar.flip.black-ahead .eval-num{top:auto;bottom:4px}
.side{display:flex;flex-direction:column;gap:16px}
.loading h2{font-size:28px}
.progress{height:8px;border-radius:4px;background:#e8e8ed;overflow:hidden;margin:16px 0 8px}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,#0071e3,#26c2a3);border-radius:4px;transition:width .3s}
.ticker{display:flex;flex-direction:column;gap:6px;max-height:min(52vh,460px);overflow:auto;margin-top:14px;padding-right:4px}
.tick{display:flex;align-items:center;gap:10px;font-size:14px;animation:in .3s both}
.tick .n{width:34px;color:var(--faint);font:500 12.5px var(--mono)}
.tick .san{font:600 14px var(--mono);min-width:58px}
.tick .lbl{font-size:13px;font-weight:600}

/* overview */
.ov{max-width:1000px;margin:0 auto;padding:30px 28px 80px}
.ov-players{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;text-align:center}
.ov-player{display:flex;flex-direction:column;align-items:center;gap:8px}
.ov-player .name{font-size:22px;font-weight:700;letter-spacing:-.02em;display:flex;align-items:center;gap:6px}
.ov-player .meta{color:var(--muted);font-size:14px}
.ov-player .acc{font-size:64px;font-weight:700;letter-spacing:-.045em;line-height:1}
.ov-player .acc small{font-size:24px;color:var(--muted);font-weight:600}
.ov-player .acc-l{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.ov-mid{display:flex;flex-direction:column;align-items:center;gap:6px}
.ov-mid .score{font-size:40px;font-weight:700;letter-spacing:-.03em}
.ov-mid small{color:var(--muted);font-size:13px;max-width:180px}
.you-tag{font-size:11px;font-weight:700;color:var(--blue);background:rgba(0,113,227,.1);border-radius:6px;padding:2px 6px}
.graph{width:100%;height:120px;margin:28px 0 8px;border-radius:16px;overflow:hidden;background:#3a3d42;cursor:pointer}
.graph svg{width:100%;height:100%;display:block}
.g-area{fill:#fff}.g-mid{stroke:rgba(150,150,160,.6);stroke-width:1}
.coachcard{display:flex;gap:16px;align-items:flex-start}
.coach-av{width:56px;height:56px;border-radius:50%;flex:none;display:grid;place-items:center;background:radial-gradient(circle at 30% 25%,#7fd3ff,#0071e3 70%);box-shadow:0 6px 16px rgba(0,113,227,.3)}
.coach-av img{width:38px;height:38px;filter:brightness(0) invert(1)}
.coach-av.sm{width:44px;height:44px}.coach-av.sm img{width:28px;height:28px}
.coach-av.talking{animation:talk 1s ease-in-out infinite}
@keyframes talk{0%,100%{box-shadow:0 6px 16px rgba(0,113,227,.3),0 0 0 0 rgba(0,113,227,.35)}50%{box-shadow:0 6px 16px rgba(0,113,227,.3),0 0 0 8px rgba(0,113,227,0)}}
.bubble{background:#fff;border-radius:20px;padding:16px 20px;box-shadow:var(--shadow);position:relative;flex:1;font-size:16px;line-height:1.5}
.bubble::before{content:"";position:absolute;left:-7px;top:20px;width:14px;height:14px;background:#fff;transform:rotate(45deg);border-radius:2px}
.ktable{width:100%;border-collapse:collapse}
.ktable th{font-size:12px;color:var(--muted);font-weight:600;padding:0 0 10px}
.ktable td{padding:9px 0;border-top:1px solid var(--line2);font-size:15.5px}
.ktable td.c{text-align:center;font-weight:700;font-size:18px;width:110px}
.ktable td.l{display:flex;align-items:center;gap:12px;font-weight:600}
.ktable td.zero{color:#c7c7cc;font-weight:500}
.rating-row{display:grid;grid-template-columns:1fr auto 1fr;text-align:center;align-items:center;gap:20px}
.rating-row b{font-size:54px;letter-spacing:-.045em;line-height:1}
.rating-row small{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.adv{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0}
.adv .h{font-size:13px;color:var(--muted);font-weight:600;text-align:center}
.adv-row{display:grid;grid-template-columns:110px 1fr 110px;align-items:center;padding:14px 0;border-top:1px solid var(--line2)}
.adv-row .mid{text-align:center}
.adv-row .mid b{display:block;font-size:16px}
.adv-row .mid small{color:var(--muted);font-size:13px}
.grade{display:inline-flex;flex-direction:column;align-items:center;gap:4px;font-size:12px;font-weight:600}
.grade i{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-style:normal;color:#fff;font-size:16px}
.grade.g4 i{background:var(--k-brilliant)}.grade.g3 i{background:var(--k-best)}.grade.g2 i{background:var(--k-inaccuracy)}.grade.g1 i{background:var(--k-mistake)}.grade.g0 i{background:#c7c7cc}
.cta-bar{position:sticky;bottom:18px;display:flex;justify-content:center;gap:12px;margin-top:28px}
.cta-bar .btn{box-shadow:0 10px 30px rgba(0,113,227,.35)}

/* review */
.rv-panel{display:flex;flex-direction:column;gap:14px}
.rv-head{display:flex;align-items:center;gap:12px}
.rv-head h3{font-size:20px;flex:1;line-height:1.25}
.rv-text{font-size:16.5px;line-height:1.5;color:var(--ink2);margin:0}
.rv-line{font:500 13.5px var(--mono);color:var(--muted);background:#f5f5f7;border-radius:12px;padding:10px 12px}
.rv-actions{display:flex;gap:8px;flex-wrap:wrap}
.rv-nav{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center}
.rv-nav .btn.big{width:100%}
.round{width:52px;height:52px;border-radius:50%;background:#e8e8ed;display:grid;place-items:center;font-size:20px}
.round:hover{background:#dedee3}
.mlist{display:grid;grid-template-columns:36px 1fr 1fr;max-height:230px;overflow:auto;font:500 13.5px var(--mono);background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:8px}
.mlist .n{color:var(--faint);padding:5px 4px;font-size:12px}
.mlist .m{padding:4px 8px;border-radius:8px;cursor:pointer;display:flex;align-items:center;gap:6px}
.mlist .m:hover{background:#f2f2f5}
.mlist .m.cur{background:rgba(0,113,227,.12);color:var(--blue)}
.mlist .m i{width:16px;height:16px;border-radius:50%;font:800 8.5px/16px var(--font);color:#fff;text-align:center;font-style:normal}
.minigraph{height:56px;border-radius:12px;overflow:hidden;background:#3a3d42;cursor:pointer}
.minigraph svg{width:100%;height:100%;display:block}
.mode-toggle{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted)}

/* openings explorer */
.crumbs{display:flex;flex-wrap:wrap;gap:4px;min-height:32px;align-items:center}
.crumbs button{background:#e8e8ed;border-radius:8px;padding:4px 9px;font:500 12.5px var(--mono);color:var(--ink2)}
.crumbs button.on{background:var(--blue);color:#fff}
.xtable{width:100%;border-collapse:collapse;font-size:14px}
.xtable th{text-align:left;font-size:12px;color:var(--muted);font-weight:600;padding:4px 6px}
.xtable td{padding:8px 6px;border-top:1px solid var(--line2)}
.xtable tr[data-san]{cursor:pointer}
.xtable tr[data-san]:hover td{background:#f7f7f9}
.xtable td:first-child{font:600 14px var(--mono);width:70px}
.xtable td:nth-child(2){width:50px;color:var(--muted)}
.wdl{display:flex;height:20px;border-radius:6px;overflow:hidden;font:700 10px var(--font)}
.wdl i{display:grid;place-items:center;font-style:normal}
.wdl .w{background:#f1f1f4;color:#333;box-shadow:inset 0 0 0 1px var(--line)}.wdl .d{background:#a1a1a8;color:#fff}.wdl .l{background:#3a3d42;color:#eee}
.eline{display:flex;gap:10px;padding:8px 10px;border-radius:10px;background:#f5f5f7;font:500 13px var(--mono);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.eline b{min-width:48px;color:var(--blue)}
.eline:hover{background:#ececf0}
.verdict{font-size:14.5px;margin:0}
.verdict.good{color:#1f8a4c}.verdict.bad{color:#b4541a}

/* toasts */
.toasts{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:90;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
.toast{background:rgba(30,30,32,.92);color:#fff;border-radius:14px;padding:12px 18px;font-size:14px;box-shadow:0 10px 30px rgba(0,0,0,.25);animation:in .3s both;backdrop-filter:blur(10px);max-width:440px;text-align:center}

/* responsive */
@media (max-width:980px){
  :root{--size:min(calc(100vw - 56px), 620px)}
  .gwrap{grid-template-columns:1fr;justify-items:center;padding:16px 14px 40px;gap:18px}
  .side{width:100%;max-width:620px}
  .stats{grid-template-columns:repeat(3,1fr)}
  .grid2,.grid3{grid-template-columns:1fr}
}
@media (max-width:600px){
  :root{--size:calc(100vw - 52px)}
  .topbar{padding:10px 14px}.pill-btn span{display:none}
  .hero{padding:30px 0 10px}.hero h1{font-size:38px}.hero p{font-size:17px}
  .search textarea{padding:16px 16px 70px;font-size:16px}.search .btn{top:auto;bottom:9px;right:9px}
  .page,.ov{padding:20px 14px 60px}
  .ov-players{grid-template-columns:1fr 1fr;gap:12px}.ov-mid{grid-column:1/-1;order:-1}
  .ov-player .acc{font-size:46px}.av.s120{width:84px;height:84px;font-size:30px}
  .ktable td.c{width:64px}
  .rating-row b{font-size:40px}
  .adv-row{grid-template-columns:70px 1fr 70px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .phead h1{font-size:28px}.av.s96{width:64px;height:64px}
  .evalbar{width:9px}
}

.mlist{position:relative}
.cta-bar .btn.big{white-space:nowrap}
.ov{padding-bottom:120px}
@media (max-width:600px){
  .cta-bar{gap:8px}.cta-bar .btn.big{flex:1;padding:0 12px;font-size:15.5px;height:50px}
  .ov-player .name{font-size:18px}
}

/* ===== quality pass: gradients, depth, spacing ===== */
:root{
  --blue:#0a84ff; --blue2:#0077ed;
  --light:#eef2f7; --dark:#a8bbcf;
  --shadow:0 0 0 .5px rgba(0,0,0,.06),0 2px 4px rgba(0,0,0,.03),0 12px 32px rgba(17,24,39,.07);
  --grad-brand:linear-gradient(100deg,#0a84ff 0%,#5e5ce6 45%,#bf5af2 75%,#ff6482 100%);
  --grad-btn:linear-gradient(180deg,#2b95ff 0%,#0a7aff 55%,#0068e0 100%);
}
body{background:
  radial-gradient(1200px 520px at 15% -10%,rgba(10,132,255,.10),transparent 60%),
  radial-gradient(900px 480px at 90% -5%,rgba(191,90,242,.09),transparent 60%),
  radial-gradient(800px 600px at 50% 110%,rgba(48,209,88,.06),transparent 60%),
  #f5f5f7;background-attachment:fixed}
.topbar{background:rgba(250,250,252,.72)}
.logo span{background:linear-gradient(180deg,#1d1d1f,#4a4a4f);-webkit-background-clip:text;background-clip:text;color:transparent}

/* hero */
.hero h1 span{background:var(--grad-brand);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sheen 8s ease-in-out infinite alternate;padding-bottom:4px}
@keyframes sheen{from{background-position:0% 50%}to{background-position:100% 50%}}
.search textarea{border-radius:22px}
.search::before{content:"";position:absolute;inset:-1.5px;border-radius:23.5px;background:var(--grad-brand);opacity:0;transition:opacity .25s;z-index:-1;filter:blur(.5px)}
.search{z-index:0}
.search:focus-within::before{opacity:.9}
.search textarea:focus{box-shadow:var(--shadow)}

/* chips: spacing fixed, avatar sits inside the pill */
.hints{gap:10px;margin-top:18px}
.chip{height:36px;padding:0 16px;gap:8px;background:rgba(255,255,255,.85);box-shadow:0 0 0 .5px rgba(0,0,0,.08),0 1px 3px rgba(0,0,0,.05);transition:transform .15s,box-shadow .15s}
.chip:hover{transform:translateY(-1px);box-shadow:0 0 0 .5px rgba(0,0,0,.1),0 6px 14px rgba(0,0,0,.08)}
.chip.has-av{padding-left:5px}
.chip .av{box-shadow:0 0 0 1.5px #fff}
.chip-ico{font-size:16px;line-height:1;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.av.s26{width:26px;height:26px;font-size:11.5px}

/* buttons */
.btn{background:var(--grad-btn);box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 1px 2px rgba(0,60,140,.25),0 6px 16px rgba(10,132,255,.22)}
.btn:hover{background:linear-gradient(180deg,#3ea0ff 0%,#1484ff 55%,#0070ea 100%)}
.btn.ghost{background:rgba(10,132,255,.09);box-shadow:none;color:#0a6fd8}
.btn.ghost:hover{background:rgba(10,132,255,.15)}
.btn.gray{background:linear-gradient(180deg,#f2f2f5,#e6e6eb);box-shadow:inset 0 0 0 .5px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06)}
.btn.gray:hover{background:linear-gradient(180deg,#ececf0,#dfdfe5)}
.round{background:linear-gradient(180deg,#f4f4f7,#e5e5ea);box-shadow:inset 0 0 0 .5px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06)}
.cta-bar .btn.big{box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 12px 32px rgba(10,132,255,.35)}
.cta-bar .btn.gray{box-shadow:inset 0 0 0 .5px rgba(0,0,0,.08),0 12px 28px rgba(0,0,0,.12)}

/* avatars */
.av{color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.18);box-shadow:inset 0 0 0 .5px rgba(255,255,255,.35),inset 0 -8px 16px rgba(0,0,0,.08)}
.av::after{content:"";position:absolute;inset:0;border-radius:50%;background:linear-gradient(180deg,rgba(255,255,255,.28),transparent 45%);pointer-events:none}
.av.photo{background:#fff !important}
.av.photo::after{background:none;box-shadow:inset 0 0 0 .5px rgba(0,0,0,.1);border-radius:50%}
.av .sidepip{z-index:2}
.av.s120{box-shadow:0 0 0 4px #fff,0 10px 30px rgba(17,24,39,.18)}
.av.s96{box-shadow:0 0 0 3px #fff,0 8px 24px rgba(17,24,39,.16)}

/* coach */
.coach-av{background:radial-gradient(circle at 32% 26%,#9fe3ff 0%,#40b4ff 28%,#0a84ff 55%,#5e5ce6 100%);box-shadow:inset 0 1px 1px rgba(255,255,255,.6),0 8px 22px rgba(10,132,255,.35)}
.coach-av img{filter:brightness(0) invert(1) drop-shadow(0 1px 2px rgba(0,0,0,.25))}
.bubble{box-shadow:var(--shadow)}
.bubble::before{box-shadow:-1px 1px 0 rgba(0,0,0,.03)}

/* cards */
.card{box-shadow:var(--shadow);background:linear-gradient(180deg,#fff,#fdfdfe)}
.stat{box-shadow:var(--shadow)}
.ov > .card:first-child{background:radial-gradient(700px 260px at 50% 0%,rgba(10,132,255,.06),transparent 70%),#fff}

/* numbers */
.ov-player .acc,.rating-row b,.stat b,.ov-mid .score{font-variant-numeric:tabular-nums;background:linear-gradient(180deg,#1d1d1f 30%,#55555c);-webkit-background-clip:text;background-clip:text;color:transparent}

/* move-class badges: glossy */
.kb,.badge,.mlist .m i{background-image:linear-gradient(180deg,rgba(255,255,255,.28),rgba(255,255,255,0) 55%,rgba(0,0,0,.06));text-shadow:0 1px 1px rgba(0,0,0,.18)}
.kb{box-shadow:inset 0 0 0 .5px rgba(0,0,0,.08),0 1px 3px rgba(0,0,0,.15)}
.grade i{background-image:linear-gradient(180deg,rgba(255,255,255,.28),rgba(255,255,255,0) 55%);box-shadow:0 2px 6px rgba(0,0,0,.12)}

/* progress + graphs */
.progress{height:6px;background:#ececf0}
.progress i{background:var(--grad-brand);background-size:200% 100%;animation:sheen 2s linear infinite alternate}
.graph,.minigraph{background:linear-gradient(180deg,#2c2c30,#3a3b40);box-shadow:inset 0 0 0 .5px rgba(0,0,0,.2)}
.g-area{fill:url(#gw)}
.g-mid{stroke:rgba(140,140,150,.55);stroke-dasharray:3 4}

/* board + eval bar */
.board-frame{box-shadow:0 0 0 .5px rgba(0,0,0,.08),0 2px 6px rgba(0,0,0,.05),0 24px 60px rgba(30,45,70,.18)}
.sq{background:linear-gradient(135deg,#f3f6fa,var(--light))}
.sq.d{background:linear-gradient(135deg,#b3c5d7,var(--dark))}
.evalbar{background:linear-gradient(180deg,#2c2c30,#45464c);box-shadow:inset 0 0 0 .5px rgba(0,0,0,.25)}
.eval-fill{background:linear-gradient(180deg,#ffffff,#eef0f4)}

/* segmented + selects */
.seg{background:rgba(118,118,128,.12)}
select{box-shadow:0 0 0 .5px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.04)}
.res.win{background:linear-gradient(180deg,#eafaf0,#dcf5e6)}.res.loss{background:linear-gradient(180deg,#fff0ee,#fde3df)}

/* fixed-size coach card: the Next / back buttons never move while stepping */
.rv-card{height:330px;display:flex;flex-direction:column;padding:22px 22px 16px}
.rv-body{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;margin-right:-8px;padding-right:8px}
.rv-actions{flex:none;min-height:34px;margin-top:12px}
.rv-text{font-size:16px}
@media (max-width:600px){.rv-card{height:300px}}

/* ===================== Gambit app ===================== */
.topbar{gap:18px}
.topnav{display:flex;gap:4px;flex:1;margin-left:18px}
.topnav a{padding:7px 14px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--ink2);transition:background .15s}
.topnav a:hover{background:rgba(0,0,0,.04)}
.topnav a.on{background:#fff;color:var(--ink);box-shadow:0 0 0 .5px rgba(0,0,0,.08),0 1px 3px rgba(0,0,0,.06)}
.pill-btn.icon{width:34px;padding:0;justify-content:center}
.me-chip{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px 0 5px;border-radius:999px;background:#fff;box-shadow:0 0 0 .5px rgba(0,0,0,.08),0 1px 3px rgba(0,0,0,.05);font-weight:600;font-size:14px}
.tabbar{display:none}
.center{text-align:center}.row.center{justify-content:center}
.wide{width:100%}
.dim{color:var(--muted);font-weight:500}
.up{color:#1f8a4c}.down{color:#c4321f}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:700}
.tag.blue{background:rgba(10,132,255,.12);color:#0a6fd8}.tag.green{background:rgba(48,209,88,.15);color:#1f8a4c;vertical-align:middle;margin-left:6px}
.page.narrow{max-width:560px}
.card + .card{margin-top:0}
.cardhead{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.cardhead h3{font-size:19px}
.card.glow{box-shadow:0 0 0 1.5px rgba(10,132,255,.35),var(--shadow)}
.msg{margin:10px 0 0}

/* auth */
.auth{display:flex;flex-direction:column;align-items:center;text-align:center;padding:36px 30px;gap:8px;margin-top:20px}
.auth h1{font-size:30px;margin-top:6px}
.auth-logo{width:56px;height:56px}
.auth form{width:100%;display:flex;flex-direction:column;gap:12px;margin-top:14px;text-align:left}
.auth label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:var(--ink2)}
input{font:16px var(--font);color:var(--ink)}
.auth input,.searchrow input,.linkbox input{height:48px;border:0;border-radius:14px;background:#f2f2f6;padding:0 16px;outline:none;box-shadow:inset 0 0 0 .5px rgba(0,0,0,.06);transition:box-shadow .2s,background .2s}
.auth input:focus,.searchrow input:focus{background:#fff;box-shadow:inset 0 0 0 2px var(--blue)}
.searchrow{display:flex;gap:10px;margin-bottom:6px}.searchrow input{flex:1;min-width:0}
.linkbox{display:flex;gap:8px;width:100%;margin-top:14px}.linkbox input{flex:1;min-width:0;font-size:14px}

/* home */
.hello{display:flex;align-items:center;gap:18px;margin-bottom:22px}
.hello h1{font-size:34px}
.rpills{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.rpill{display:flex;align-items:center;gap:6px;height:32px;padding:0 12px;border-radius:999px;background:#fff;box-shadow:0 0 0 .5px rgba(0,0,0,.07),0 1px 2px rgba(0,0,0,.04);font-size:13px}
.rpill b{font-variant-numeric:tabular-nums}.rpill small{color:var(--muted)}
.rpills.big .rpill{height:44px;padding:0 16px;font-size:15px}
.quick{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-bottom:22px}
.qbtn{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:16px 16px 14px;border-radius:18px;background:#fff;box-shadow:var(--shadow);text-align:left;transition:transform .15s,box-shadow .15s}
.qbtn:hover{transform:translateY(-2px);box-shadow:0 0 0 .5px rgba(0,0,0,.06),0 16px 36px rgba(17,24,39,.1)}
.qbtn b{font-size:21px;letter-spacing:-.02em}
.qbtn small{color:var(--muted);font-size:12.5px}
.qbtn.alt{background:var(--grad-btn);color:#fff}.qbtn.alt small{color:rgba(255,255,255,.85)}
.promo{display:flex;align-items:center;gap:16px;transition:transform .15s}
.promo:hover{transform:translateY(-2px)}
.big-ico{font-size:34px;width:60px;height:60px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(140deg,#f4f6fb,#e7ecf5)}
.chrow{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--line2)}
.chrow:first-of-type{border-top:0}
.chrow .main{flex:1;display:flex;flex-direction:column;min-width:0}.chrow small{color:var(--muted);font-size:13px}
.gitem{position:relative}
.gitem .dot{position:absolute;left:38px;top:42px}
.dot{display:inline-block;width:11px;height:11px;border-radius:50%;background:#c7c7cc;box-shadow:0 0 0 2px #fff;flex:none}
.dot.on{background:#30d158}.dot.playing{background:#0a84ff;animation:blinkdot 1.6s infinite}
@keyframes blinkdot{50%{opacity:.4}}
.friendgame{background:linear-gradient(90deg,rgba(10,132,255,.06),transparent)}
.livebanner{display:flex;align-items:center;gap:12px;margin-top:20px}
.livebanner b{flex:1}

/* play hub */
.playgrid{display:grid;grid-template-columns:1.4fr 1fr;gap:20px;align-items:start}
.playside{display:flex;flex-direction:column;gap:12px}
.mode{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:20px;background:#fff;box-shadow:var(--shadow);text-align:left;transition:transform .15s,box-shadow .15s}
.mode:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 0 0 .5px rgba(0,0,0,.06),0 16px 36px rgba(17,24,39,.1)}
.mode b{display:block;font-size:17px}.mode small{color:var(--muted);font-size:13.5px}
.mode.big{background:var(--grad-btn);color:#fff;padding:22px}.mode.big small{color:rgba(255,255,255,.88)}.mode.big b{font-size:21px}
.mico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:23px;background:linear-gradient(140deg,#f4f6fb,#e7ecf5);flex:none}
.mode.big .mico{background:rgba(255,255,255,.2)}
.tcrow{display:grid;grid-template-columns:96px 1fr;gap:10px;align-items:center;padding:8px 0;border-top:1px solid var(--line2)}
.tcrow:first-child{border-top:0}
.tccat{font-size:13.5px;font-weight:600;color:var(--ink2)}
.tcopts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.tcbtn{height:44px;border-radius:12px;background:#f2f2f6;font-weight:600;font-size:15px;transition:background .15s,box-shadow .15s}
.tcbtn:hover{background:#e9e9ef}
.tcbtn.on{background:#fff;box-shadow:0 0 0 2px var(--blue),0 4px 12px rgba(10,132,255,.18);color:#0a6fd8}
.tcopts.custom{grid-template-columns:auto auto auto auto auto;align-items:center;gap:8px}
.tcopts.custom.on{background:rgba(10,132,255,.06);border-radius:12px;padding:4px}
.tcopts.custom label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}
.tcopts.custom input{width:62px;height:40px;border:0;border-radius:10px;background:#f2f2f6;text-align:center;font-weight:600}
.tcopts .or{font-size:12px;color:var(--faint)}
.compact .tcrow{grid-template-columns:80px 1fr}
.compact .tcbtn{height:38px;font-size:14px}
.switch{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:500;color:var(--ink2);cursor:pointer}
.switch input{display:none}
.switch span{width:44px;height:26px;border-radius:13px;background:#e3e3e8;position:relative;transition:background .2s}
.switch span::after{content:"";position:absolute;left:2px;top:2px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 2px 4px rgba(0,0,0,.2);transition:transform .2s}
.switch input:checked+span{background:#30d158}.switch input:checked+span::after{transform:translateX(18px)}
.levels{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.levels button{display:flex;flex-direction:column;align-items:flex-start;padding:12px;border-radius:14px;background:#f2f2f6;text-align:left}
.levels b{font-size:22px}.levels span{font-weight:600;font-size:13px}.levels small{color:var(--muted);font-size:11.5px}
.levels button.on{background:#fff;box-shadow:0 0 0 2px var(--blue),0 4px 12px rgba(10,132,255,.18)}
.seg button.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}

/* sheets */
.sheet-wrap{position:fixed;inset:0;z-index:80;display:grid;place-items:center}
.sheet-bg{position:absolute;inset:0;background:rgba(20,20,25,.28);backdrop-filter:blur(6px);animation:fadein .2s}
@keyframes fadein{from{opacity:0}}
.sheet{position:relative;width:min(520px,calc(100vw - 32px));max-height:calc(100vh - 60px);overflow:auto;background:#fff;border-radius:26px;padding:26px;box-shadow:0 30px 80px rgba(0,0,0,.25);animation:in .3s cubic-bezier(.2,.8,.2,1)}
.sheet h2{font-size:24px}
.pickfriend{max-height:220px;overflow:auto;margin-top:10px}
.gitem.fr{width:100%;text-align:left}.gitem.fr.off{opacity:.6}
.gitem.fr .tick{opacity:0;color:var(--blue);font-weight:800}.gitem.fr.on{background:rgba(10,132,255,.08)}.gitem.fr.on .tick{opacity:1}
.seeking{padding:10px 0}
.pulse{width:84px;height:84px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;font-size:36px;background:radial-gradient(circle at 30% 25%,#9fe3ff,#0a84ff 60%,#5e5ce6);animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(10,132,255,.45)}70%{box-shadow:0 0 0 22px rgba(10,132,255,0)}100%{box-shadow:0 0 0 0 rgba(10,132,255,0)}}
.seeking .btn{margin-top:16px}

/* live game */
.live .bcol{gap:8px}
.pbar{display:flex;align-items:center;gap:10px;height:52px}
.pname{display:flex;flex-direction:column;flex:1;min-width:0;line-height:1.2}
.pname b{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pname small{color:var(--muted);font-size:12.5px}
.av.s40{width:40px;height:40px;font-size:16px}
.botav{background:linear-gradient(140deg,#e9edf5,#cfd7e6) !important;font-size:20px}
.clock{min-width:104px;height:44px;padding:0 14px;border-radius:12px;display:grid;place-items:center;font:700 24px/1 var(--font);font-variant-numeric:tabular-nums;background:#e9e9ee;color:#86868b;letter-spacing:-.02em}
.clock.run{background:#1d1d1f;color:#fff;box-shadow:0 6px 16px rgba(0,0,0,.18)}
.clock.run.low{background:linear-gradient(180deg,#ff5a4e,#e5352a);color:#fff}
.clock.day{font-size:16px}
.gstatus{padding:16px 18px}
.gs-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.gs-line b{font-size:17px}.gs-line .sub{margin:0 0 0 auto;font-size:13px}
.offer{display:flex;align-items:center;gap:8px;margin-top:12px;padding:10px 12px;border-radius:12px;background:rgba(10,132,255,.08);font-size:14px;flex-wrap:wrap}
.offer.muted{background:#f2f2f6;color:var(--muted)}
.endcard{text-align:center;padding:6px 0}
.endcard h2{font-size:28px}
.endcard.win h2{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.gactions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.gactions .btn{flex:1}
.gactions .btn.big{flex:2}
.btn.danger{color:#c4321f}
.live .mlist{max-height:300px;min-height:120px}

/* puzzles */
.pz-top{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:12px}
.pz-rating{display:flex;align-items:baseline;gap:8px}.pz-rating b{font-size:40px;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.pz-rating small{color:var(--muted)}
.streak{font-weight:700;color:#e5631f}
.pz-prompt{display:flex;gap:14px;align-items:center;padding:14px 16px;border-radius:16px;background:#f5f5f8;margin-bottom:12px;transition:background .2s}
.pz-prompt b{font-size:19px}.pz-prompt p{margin:2px 0 0;color:var(--muted);font-size:14px}
.pz-prompt.good{background:linear-gradient(180deg,#eafaf0,#ddf5e7)}.pz-prompt.bad{background:linear-gradient(180deg,#fff0ee,#fde3df);animation:shake .35s}.pz-prompt.meh{background:#fff8e6}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.turnchip{width:34px;height:34px;border-radius:50%;flex:none;box-shadow:0 0 0 .5px rgba(0,0,0,.15),0 2px 6px rgba(0,0,0,.12)}
.turnchip.w{background:linear-gradient(180deg,#fff,#e8e8ee)}.turnchip.b{background:linear-gradient(180deg,#4a4a50,#1d1d1f)}
.pz-info{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:14px;color:var(--muted);min-height:20px;margin-bottom:12px}
.pz-info b{font-size:16px}
.themes{display:flex;flex-wrap:wrap;gap:6px}
.tchip{display:inline-flex;height:30px;align-items:center;padding:0 12px;border-radius:999px;background:#f2f2f6;font-size:13px;color:var(--ink2)}
.tchip:hover{background:#e9e9ef}.tchip.on{background:var(--blue);color:#fff}

/* responsive: phones get a bottom tab bar and full-width boards */
@media (max-width:980px){
  .quick{grid-template-columns:repeat(3,1fr)}
  .playgrid{grid-template-columns:1fr}
}
@media (max-width:760px){
  .topnav{display:none}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;justify-content:space-around;padding:6px 6px calc(6px + env(safe-area-inset-bottom));background:rgba(250,250,252,.86);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-top:.5px solid rgba(0,0,0,.1)}
  .tabbar a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 10px;font-size:10.5px;font-weight:500;color:#8e8e93;flex:1}
  .tabbar svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
  .tabbar a.on{color:var(--blue)}
  body{padding-bottom:calc(66px + env(safe-area-inset-bottom))}
  .me-chip{padding:0 5px}
  .sheet-wrap{place-items:end center}
  .sheet{width:100%;border-radius:26px 26px 0 0;padding:22px 18px calc(22px + env(safe-area-inset-bottom));max-height:88vh;animation:up .3s cubic-bezier(.2,.8,.2,1)}
  @keyframes up{from{transform:translateY(40px);opacity:0}}
  .hello h1{font-size:26px}.hello .av.s64{width:52px;height:52px}
  .levels{grid-template-columns:repeat(2,1fr)}
  .tcrow{grid-template-columns:1fr}.tccat{font-size:12px;color:var(--muted)}
  .tcopts.custom{grid-template-columns:1fr 1fr;}
  .clock{min-width:88px;height:40px;font-size:21px}
  .pbar{height:46px}
  .live .gwrap,.gwrap.live{gap:12px}
  .gactions .btn{height:48px}
}
@media (max-width:600px){
  .quick{grid-template-columns:repeat(2,1fr)}
  .qbtn b{font-size:19px}
  .gwrap{padding:10px 12px 30px}
  :root{--size:calc(100vw - 38px)}
  .live{--size:calc(100vw - 24px)}
  .gwrap .brow .evalbar{width:8px}
  .gwrap .brow{gap:6px}
  .phead{gap:14px}
}
@media (max-width:760px){
  .me-chip > span:not(.av){display:none}
  .me-chip span.av{display:inline-grid}
  .playside .mode.big{position:sticky;bottom:calc(74px + env(safe-area-inset-bottom));z-index:5;box-shadow:0 12px 30px rgba(10,132,255,.35)}
  .playgrid{display:flex;flex-direction:column}
  .tcopts.custom{grid-template-columns:1fr 1fr}
  .tcopts.custom .or{display:none}
  .tcopts.custom #cset{grid-column:1/-1;height:40px}
}

/* ChessArc brand */
.logo img{width:30px;height:30px;border-radius:8px;box-shadow:0 2px 8px rgba(94,92,230,.3)}
.wordmark{font-weight:750;letter-spacing:-.035em;background:none !important;color:var(--ink) !important;-webkit-text-fill-color:currentColor}
.wordmark em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.auth-logo{border-radius:16px;box-shadow:0 8px 24px rgba(94,92,230,.3)}

/* learn */
.progress.big{height:8px;margin:0 0 6px}
.unit{margin-top:26px}.unit-h{display:flex;align-items:center;gap:10px;margin-bottom:12px}.unit-h h3{font-size:20px}
.unit-n{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:var(--grad-btn);color:#fff;font-weight:700;font-size:14px}
.lessons{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.lesson{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:18px;background:#fff;box-shadow:var(--shadow);transition:transform .15s}
.lesson:hover{transform:translateY(-2px)}
.lesson .main{flex:1;display:flex;flex-direction:column;min-width:0}.lesson small{color:var(--muted);font-size:13px}.lesson em{font-style:normal;color:var(--faint);font-size:12px;margin-top:2px}
.lico{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(140deg,#f4f6fb,#e7ecf5);flex:none}.lico img{width:40px;height:40px}
.lstate{min-width:34px;height:34px;border-radius:999px;display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--faint);box-shadow:inset 0 0 0 1.5px var(--line)}
.lesson.done .lstate{background:#30d158;color:#fff;box-shadow:none}
.lesson.next{box-shadow:0 0 0 2px rgba(10,132,255,.5),var(--shadow)}.lesson.next .lstate{padding:0 12px;background:var(--grad-btn);color:#fff;box-shadow:none}
.lesson-card h2{font-size:26px;margin:2px 0 12px}
.steps{display:flex;gap:5px}.steps i{flex:1;height:5px;border-radius:3px;background:#e5e5ea}.steps i.done{background:#30d158}.steps i.cur{background:var(--blue)}
.steps i.pr{flex:1.6;background:repeating-linear-gradient(90deg,#d1d1d6 0 6px,transparent 6px 9px)}.steps i.pr.done{background:#30d158}.steps i.pr.cur{background:var(--blue)}
.feedback{margin-top:12px;padding:11px 14px;border-radius:14px;font-size:14.5px}
.feedback.good{background:linear-gradient(180deg,#eafaf0,#ddf5e7);color:#1f6b3d}.feedback.bad{background:linear-gradient(180deg,#fff0ee,#fde3df);color:#9b2a1c;animation:shake .35s}.feedback.meh{background:#f5f5f8;color:var(--ink2)}
/* phones: review controls pinned on screen so you can step through while watching the board */
@media (max-width:760px){
  .rv-nav{position:fixed;left:10px;right:10px;bottom:calc(68px + env(safe-area-inset-bottom));z-index:35;padding:8px;border-radius:24px;background:rgba(250,250,252,.82);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);box-shadow:0 0 0 .5px rgba(0,0,0,.08),0 10px 30px rgba(0,0,0,.14)}
  .rv-nav .btn.big{height:48px}
  .rv-nav .round{width:48px;height:48px}
  .rv-panel{padding-bottom:84px}
  .rv-card{height:auto;min-height:150px;max-height:230px}
  .gwrap:has(.rv-panel){gap:10px}
}
.view{animation-fill-mode:backwards}

/* buttons: one line, icon and label centred together */
.btn{white-space:nowrap;line-height:1}
.gactions .btn{min-width:0;padding:0 14px}
.gactions .btn.big{padding:0 18px}
.btn .bi{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;margin-left:-2px}
.side .card .gactions .btn{height:46px}