/* Kapilash Chess Academy - shared styles. Palette and type follow kapilashchess.in */
:root{
  --bg:#FAF3E4; --surface:#FFFDF8; --surface-2:#F3E9D4;
  --ink:#241F1B; --ink-soft:#544C43; --line:#E4D7BA;
  --maroon:#6B1420; --maroon-dark:#4A0E17; --maroon-tint:#F6E4E2;
  --gold:#B5892C; --gold-light:#E8CD8A;
  --forest:#3C6255; --forest-tint:#E7EFE8;
  --bad:#B23B2E; --bad-tint:#F8E4E1;
  --radius:14px; --shadow:0 8px 24px rgba(36,31,27,.10);
  --f-display:'Fraunces',Georgia,serif; --f-ui:'Work Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#1B1613; --surface:#241E1A; --surface-2:#2C2420; --ink:#F3ECE1; --ink-soft:#C9BDAE; --line:#3A322A;
  --maroon:#E2707D; --maroon-dark:#F0919B; --maroon-tint:#3A2224; --gold:#D9B968; --gold-light:#8A6A2A;
  --forest:#8FBBA6; --forest-tint:#20302A; --bad:#F08A7E; --bad-tint:#3A1F1C; --shadow:0 8px 24px rgba(0,0,0,.35);
  color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-ui);line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--f-display);font-weight:600;line-height:1.15;margin:0;text-wrap:balance}
a{color:var(--maroon)}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
img{max-width:100%}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;gap:22px;padding-block:10px;min-height:60px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--maroon);font-family:var(--f-display);font-weight:700;font-size:18px;white-space:nowrap}
.logo b{font-weight:600;color:var(--ink)}
.mainnav{display:flex;gap:18px;margin-right:auto}
.mainnav a{color:var(--ink-soft);text-decoration:none;font-size:14px;font-weight:600;padding:6px 0;border-bottom:2px solid transparent}
.mainnav a:hover,.mainnav a.on{color:var(--maroon);border-color:var(--maroon)}
.userbox{display:flex;align-items:center;gap:10px}
.userlink{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font-weight:600;font-size:14px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--maroon);color:var(--surface);display:grid;place-items:center;font-family:var(--f-display);font-size:15px}
form.inline{display:inline;margin:0}
@media (max-width:640px){.mainnav{display:none}.logo span{font-size:16px}.uname{display:none}.topbar-in{gap:10px}.logo{margin-right:auto}}
@media (max-width:480px){.logo span{display:none}}
.chess-strip{height:8px;opacity:.5;background-image:linear-gradient(45deg,var(--maroon) 25%,transparent 25%),linear-gradient(-45deg,var(--maroon) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,var(--maroon) 75%),linear-gradient(-45deg,transparent 75%,var(--maroon) 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font:600 15px/1 var(--f-ui);padding:13px 22px;text-decoration:none;border:1.5px solid transparent;cursor:pointer;white-space:nowrap}
.btn-sm{padding:8px 14px;font-size:13.5px}
.btn-primary{background:var(--maroon);color:var(--surface)}
.btn-primary:hover{background:var(--maroon-dark)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink-soft)}
.btn-block{width:100%}

/* flash */
.flash{margin-top:18px;padding:12px 16px;border-radius:10px;font-size:14.5px;background:var(--forest-tint);color:var(--forest);border:1px solid color-mix(in srgb,var(--forest) 25%,transparent)}
.flash-error{background:var(--bad-tint);color:var(--bad);border-color:color-mix(in srgb,var(--bad) 25%,transparent)}
.flash-info{background:var(--surface-2);color:var(--ink);border-color:var(--line)}

/* library hero */
.lib-hero{padding:46px 0 30px;display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:center}
@media (max-width:820px){.lib-hero{grid-template-columns:1fr;gap:24px;padding-top:30px}}
.eyebrow{font-size:13px;font-weight:700;color:var(--forest);letter-spacing:.02em;margin-bottom:10px}
.lib-hero h1{font-size:clamp(32px,5vw,50px);color:var(--ink)}
.lib-hero h1 em{font-style:normal;color:var(--maroon)}
.lib-hero p.lead{font-size:17px;color:var(--ink-soft);max-width:56ch;margin:14px 0 22px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.feats{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.feats li{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px 14px 52px;position:relative;font-size:14.5px;color:var(--ink-soft)}
.feats li b{display:block;color:var(--ink);font-size:15px}
.feats li::before{content:attr(data-n);position:absolute;left:14px;top:14px;width:26px;height:26px;border-radius:6px;background:var(--maroon-tint);color:var(--maroon);display:grid;place-items:center;font:700 13px var(--f-ui)}

.section{padding:26px 0 60px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,30px)}
.muted{color:var(--ink-soft)}

/* book cards */
.books{display:grid;gap:22px}
.book{display:grid;grid-template-columns:170px minmax(0,1fr);gap:28px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
@media (max-width:600px){.book{grid-template-columns:1fr;padding:18px}.book .cover{width:140px}}
.cover{aspect-ratio:5.5/8.5;width:170px;max-width:100%;border-radius:6px;background:linear-gradient(160deg,#4A0E17,#6B1420);color:#FBF1E7;padding:16px 14px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:var(--shadow);font-family:var(--f-display)}
.cover.alt{background:linear-gradient(160deg,#22372F,#3C6255)}
.cover small{font:600 9.5px var(--f-ui);letter-spacing:.14em;color:#E8CD8A}
.cover b{font-size:21px;line-height:1.05;font-weight:700}
.cover .mini{display:grid;grid-template-columns:repeat(4,1fr);aspect-ratio:1;width:58%;border:1px solid rgba(255,255,255,.35)}
.cover .mini i:nth-child(8n+1),.cover .mini i:nth-child(8n+3),.cover .mini i:nth-child(8n+6),.cover .mini i:nth-child(8n+8){background:rgba(255,255,255,.22)}
.cover span{font-size:11px;color:#F0DFCF}
.tag{display:inline-block;background:var(--forest-tint);color:var(--forest);border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600}
.tag.gold{background:var(--maroon-tint);color:var(--maroon)}
.tag.soon{background:var(--surface-2);color:var(--ink-soft)}
.book h3{font-size:25px;color:var(--maroon);margin:10px 0 2px}
.book .by{font-size:14px;color:var(--ink-soft);margin:0 0 10px}
.book p.desc{margin:0 0 14px;color:var(--ink-soft);max-width:65ch}
.meta{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:13.5px;color:var(--ink-soft);margin-bottom:16px}
.meta b{color:var(--ink);font-variant-numeric:tabular-nums}
.chapters{list-style:none;padding:0;margin:0 0 18px;border-top:1px dashed var(--line)}
.chapters li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14.5px;flex-wrap:wrap}
.chapters li .n{display:inline-block;width:26px;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.chapters a{font-weight:600;white-space:nowrap}
.chapters .lock{font-size:13px;color:var(--ink-soft)}
details.more summary{cursor:pointer;font-size:14px;color:var(--maroon);font-weight:600;margin-bottom:8px}

/* forms */
.auth{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:48px;align-items:start;padding:44px 0 70px}
.auth.wide{grid-template-columns:minmax(0,1fr) minmax(0,620px)}
@media (max-width:900px){.auth,.auth.wide{grid-template-columns:1fr;gap:20px;padding-top:26px}.auth-side{order:2}}
.auth-side h1{font-size:clamp(28px,4vw,40px);margin-bottom:12px}
.auth-side p{color:var(--ink-soft);max-width:46ch}
.auth-side ul{padding-left:20px;color:var(--ink-soft)}
.auth-side li{margin-bottom:6px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
@media (max-width:480px){.panel{padding:20px}}
.panel h2{font-size:24px;margin-bottom:4px}
.panel .sub{color:var(--ink-soft);font-size:14.5px;margin:0 0 20px}
.form{display:grid;gap:16px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:520px){.row2{grid-template-columns:1fr}}
.fld{display:grid;gap:6px;min-width:0}
.fld label{font-size:13.5px;font-weight:600}
.fld label small{font-weight:400;color:var(--ink-soft)}
.fld input,.fld select{width:100%;font:16px var(--f-ui);color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:10px;padding:11px 12px;min-height:46px}
.fld input:focus,.fld select:focus{outline:none;border-color:var(--maroon);box-shadow:0 0 0 3px color-mix(in srgb,var(--maroon) 18%,transparent)}
.fld input[aria-invalid=true],.fld select[aria-invalid=true]{border-color:var(--bad)}
.err{color:var(--bad);font-size:13px}
.hint{color:var(--ink-soft);font-size:12.5px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-soft)}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--maroon);flex:none}
.form-foot{font-size:14px;color:var(--ink-soft);text-align:center;margin-top:4px}
.pw-wrap{position:relative}
.pw-wrap input{padding-right:70px}
.pw-toggle{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:none;color:var(--maroon);font:600 13px var(--f-ui);cursor:pointer;padding:8px}
fieldset{border:0;padding:0;margin:0;display:grid;gap:14px}
legend{font-family:var(--f-display);font-weight:600;font-size:17px;margin-bottom:10px;padding:0}
.divider{height:1px;background:var(--line);margin:4px 0}

/* account */
.acct{padding:36px 0 70px;display:grid;grid-template-columns:280px minmax(0,1fr);gap:28px;align-items:start}
@media (max-width:820px){.acct{grid-template-columns:1fr}}
.profile-card{text-align:center}
.profile-card .avatar{width:72px;height:72px;font-size:32px;margin:0 auto 10px}
.profile-card h2{font-size:22px}
.kv{display:grid;gap:0;margin-top:14px;text-align:left}
.kv div{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px dashed var(--line);font-size:14px}
.kv dt{color:var(--ink-soft)} .kv dd{margin:0;font-weight:600;text-align:right;overflow-wrap:anywhere}

/* prose (privacy) */
.prose{max-width:720px;padding:40px 0 70px}
.prose h1{font-size:clamp(28px,4vw,38px);margin-bottom:14px}
.prose h2{font-size:21px;margin:28px 0 8px}
.prose p,.prose li{color:var(--ink-soft)}

/* footer */
.foot{background:var(--maroon-dark);color:#F0DFCF;padding:30px 0 26px;margin-top:20px}
@media (prefers-color-scheme:dark){.foot{background:#2a1013}}
.foot-in{display:grid;grid-template-columns:1fr auto;gap:12px 24px;align-items:center}
.foot-in b{display:block;color:#fff;font-family:var(--f-display);font-size:18px}
.foot-in span{font-size:13.5px;color:#D8B9A9}
.foot-in nav{display:flex;gap:18px}
.foot-in nav a{color:#fff;font-size:14px;text-decoration:none}
.foot-in nav a:hover{text-decoration:underline}
.foot-in small{grid-column:1/-1;color:#D8B9A9;font-size:12.5px;border-top:1px solid rgba(255,255,255,.15);padding-top:12px}
@media (max-width:600px){.foot-in{grid-template-columns:1fr}}

/* ---------- Lesson reader ---------- */
:root{--paper:var(--bg);--sheet:var(--surface);--ink-2:var(--ink-soft);--rule:var(--line);--accent:var(--maroon);--note-bg:var(--surface-2);
  --sq-light:#EEEAD8;--sq-dark:#7C9A86;--sq-last:rgba(236,196,72,.55);--sq-sel:rgba(107,20,32,.38);--dot:rgba(27,36,34,.28);
  --good:#1f7a4d;--good-bg:#e3f2e9;--bad-bg:var(--bad-tint);--alt:#6a6f86;--alt-bg:#ebecf3;
  --f-fig:"Segoe UI Symbol","Noto Sans Symbols 2","DejaVu Sans","Apple Symbols",var(--f-ui)}
@media (prefers-color-scheme:dark){:root{--sq-light:#c9cfbf;--sq-dark:#5f7a65;--good:#6fd39c;--good-bg:#183326;--alt:#a9aecb;--alt-bg:#262838;--dot:rgba(10,14,13,.35)}}
.fig{font-family:var(--f-fig);font-variant-emoji:text}
button{font:inherit;color:inherit}
.lesson{padding-block:10px 60px}
.col{max-width:700px;margin:0 auto}
.lesson .col > p, .lesson .col li{font-size:17px;line-height:1.7}
/* chapter opener */
.opener{display:grid;grid-template-columns:auto 1fr;gap:6px 22px;align-items:end;padding-block:24px 28px;border-bottom:2px solid var(--ink);margin-bottom:28px}
.opener .num{font-family:var(--f-ui);font-weight:800;font-size:clamp(5rem,16vw,8.5rem);line-height:.8;color:var(--accent)}
.opener .kicker{font-family:var(--f-ui);text-transform:uppercase;letter-spacing:.14em;font-size:.75rem;color:var(--ink-2)}
.opener h1{font-family:var(--f-ui);font-weight:700;font-size:clamp(2rem,5vw,3rem);line-height:1.02;margin:4px 0 0;text-wrap:balance}
.opener .sub{grid-column:1/-1;font-style:italic;color:var(--ink-2);font-size:1.15rem;margin:10px 0 0}
.learn{background:var(--note-bg);border-radius:6px;padding:16px 20px;margin-bottom:8px}
.learn h2{font-family:var(--f-ui);font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;margin:0 0 6px;color:var(--accent)}
.learn ul{margin:0;padding-left:1.1em}

h2.sec{font-family:var(--f-ui);font-weight:700;font-size:1.55rem;line-height:1.15;margin:44px 0 10px;text-wrap:balance;scroll-margin-top:70px}
p{margin:0 0 14px}
ol.q{padding-left:1.4em;margin:0 0 16px}
ol.q li{margin-bottom:8px}
.note{border-left:3px solid var(--accent);padding:4px 0 4px 16px;margin:20px 0}
.note b.l{display:block;font-family:var(--f-ui);font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;color:var(--accent);margin-bottom:2px}
.values{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--rule);border-radius:6px;margin:6px 0 18px;background:var(--sheet);overflow:hidden}
.values div{text-align:center;padding:10px 4px;border-right:1px solid var(--rule)}
.values div:last-child{border:0}
.values img{width:38px;height:38px;display:block;margin:0 auto}
.values small{display:block;font-family:var(--f-ui);font-size:.72rem;color:var(--ink-2);text-transform:uppercase;letter-spacing:.06em}
.values b{font-family:var(--f-ui);font-size:1.4rem;font-variant-numeric:tabular-nums}

/* board plate */
.plate{background:var(--sheet);border:1px solid var(--rule);border-radius:8px;margin:26px calc(-1*min(200px, (100vw - 680px)/2 - 16px));padding:20px;
  display:grid;grid-template-columns:minmax(0,400px) minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:860px){.plate{margin-inline:0;grid-template-columns:1fr;padding:14px}}
.plate h3{font-family:var(--f-ui);font-weight:700;font-size:1.15rem;margin:0 0 6px}
.plate .intro{font-size:1rem;color:var(--ink)}
.boardwrap{min-width:0}
.cap{display:flex;justify-content:space-between;font-family:var(--f-ui);font-size:.78rem;color:var(--ink-2);margin-top:6px;letter-spacing:.03em}
.cap .stm::before{content:"";display:inline-block;width:10px;height:10px;border-radius:50%;border:1.5px solid var(--ink);margin-right:6px;vertical-align:-1px}
.cap .stm.b::before{background:var(--ink)}

.board{position:relative;width:100%;max-width:400px;aspect-ratio:1;display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);
  border:1px solid var(--rule);user-select:none;-webkit-user-select:none;touch-action:manipulation}
.sq{position:relative;display:flex;align-items:center;justify-content:center}
.sq.l{background:var(--sq-light)} .sq.d{background:var(--sq-dark)}
.sq.last::after{content:"";position:absolute;inset:0;background:var(--sq-last)}
.sq.sel::after{content:"";position:absolute;inset:0;background:var(--sq-sel)}
.sq.flash-bad::after{content:"";position:absolute;inset:0;background:rgba(200,60,40,.45)}
.sq.tgt::before{content:"";position:absolute;width:30%;height:30%;border-radius:50%;background:var(--dot);z-index:2}
.sq.tgt.capt::before{width:86%;height:86%;background:transparent;border:4px solid var(--dot)}
.sq img{position:relative;z-index:1;width:94%;height:94%;pointer-events:none;transition:transform .18s}
.sq .cr{position:absolute;font-family:var(--f-ui);font-size:9px;font-weight:700;line-height:1;z-index:1;opacity:.8}
.sq .cr.r{top:2px;left:3px} .sq .cr.f{bottom:2px;right:3px}
.sq.l .cr{color:var(--sq-dark)} .sq.d .cr{color:var(--sq-light)}
.interactive .sq{cursor:pointer}

.ctl{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.ctl button{border:1px solid var(--rule);background:var(--paper);border-radius:5px;min-width:40px;height:36px;padding:0 10px;cursor:pointer;font-family:var(--f-ui);font-size:.85rem}
.ctl button:hover{border-color:var(--ink-2)}
.ctl button:disabled{opacity:.4;cursor:default}
.ctl .sp{flex:1}

.lines{display:flex;flex-direction:column;gap:10px;margin:4px 0 14px}
.line{border-radius:6px;padding:8px 10px 9px;background:var(--note-bg);border:1px solid transparent;cursor:pointer}
.line.on{border-color:currentColor}
.line .lab{font-family:var(--f-ui);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;font-weight:700;display:block;margin-bottom:2px}
.line.good{color:var(--good);background:var(--good-bg)} .line.bad{color:var(--bad);background:var(--bad-bg)} .line.alt{color:var(--alt);background:var(--alt-bg)}
.mv{color:var(--ink);font-size:1rem;cursor:pointer;border-radius:3px;padding:0 2px;white-space:nowrap;border:0;background:none;line-height:1.7}
.mv:hover{background:var(--sheet)}
.mv.cur{background:var(--ink);color:var(--paper)}
.mv.cur .mn{color:inherit;opacity:.75}
.mn{color:var(--ink-2);font-size:.92rem}
.after{font-size:1rem}

.solve{border:1px dashed var(--accent);border-radius:6px;padding:12px 14px;margin-bottom:14px}
.solve .qq{font-family:var(--f-ui);font-weight:700;font-size:.95rem;margin:0 0 4px}
.msg{font-size:.98rem;min-height:1.6em;margin:4px 0 0}
.msg.ok{color:var(--good)} .msg.no{color:var(--bad)}
.linkbtn{background:none;border:0;padding:0;color:var(--accent);text-decoration:underline;text-underline-offset:3px;cursor:pointer;font-size:.95rem;font-family:var(--f-ui)}
.reveal[hidden]{display:none}

.remember{background:var(--ink);color:var(--paper);border-radius:8px;padding:22px 24px;margin:40px 0 18px}
.remember h2{font-family:var(--f-ui);font-size:.8rem;text-transform:uppercase;letter-spacing:.16em;margin:0 0 10px;color:var(--sq-light)}
.remember ol{margin:0;padding-left:1.3em}
.remember li{margin-bottom:6px}

/* exercises */
.xhead{max-width:680px;margin:56px auto 18px;border-top:2px solid var(--ink);padding-top:18px}
.xhead h2{font-family:var(--f-ui);font-weight:700;font-size:2rem;margin:0 0 6px;scroll-margin-top:70px}
.xhead p{color:var(--ink-2);font-size:1rem}
.filters{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.filters button{font-family:var(--f-ui);font-size:.8rem;border:1px solid var(--rule);background:var(--sheet);border-radius:20px;padding:4px 12px;cursor:pointer}
.filters button.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.xgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:18px}
.xcard{background:var(--sheet);border:1px solid var(--rule);border-radius:8px;padding:14px;min-width:0;display:flex;flex-direction:column;gap:8px}
.xcard.done{border-color:var(--good)}
.xtop{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-family:var(--f-ui)}
.xtop b{font-size:1rem}
.badge{font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;padding:2px 8px;border-radius:10px;background:var(--note-bg);color:var(--ink-2)}
.done .badge{background:var(--good-bg);color:var(--good)}
.xcard .board{max-width:none}
.xp{font-size:.98rem;margin:0}
.hint{font-size:.95rem;color:var(--ink-2);font-style:italic;margin:0}
.quiz{display:flex;gap:8px;flex-wrap:wrap}
.quiz button{border:1px solid var(--accent);background:transparent;color:var(--accent);border-radius:5px;padding:6px 14px;cursor:pointer;font-family:var(--f-ui);font-weight:600}
.quiz button.picked-ok{background:var(--good);border-color:var(--good);color:var(--sheet)}
.quiz button.picked-no{background:var(--bad);border-color:var(--bad);color:var(--sheet)}
.status{font-size:.95rem;line-height:1.45;margin-top:10px;padding:8px 10px;border-radius:5px;background:var(--note-bg);color:var(--ink-2);min-height:2.4em}
.status.wrong{background:var(--bad-bg);color:var(--bad)}
.status.right{background:var(--good-bg);color:var(--good)}
.status.explore{background:var(--alt-bg);color:var(--ink)}
.retry-inline{border:1px solid currentColor;background:transparent;color:inherit;border-radius:4px;padding:1px 8px;margin-left:4px;cursor:pointer;font-family:var(--f-ui);font-size:.85rem}
.ctl .retry{font-weight:600}
.xtools{display:flex;gap:14px;flex-wrap:wrap}
.sq:has(img){touch-action:none}
.sq img{will-change:transform}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

.opener h1,h2.sec,.plate h3,.xhead h2{font-family:var(--f-display);font-weight:600}
.opener .num{font-family:var(--f-display);font-weight:700}

/* ---------- Academy pages ---------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--maroon);color:#fff;padding:8px 14px;z-index:50}
.skip:focus{left:10px;top:10px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.section.alt{background:var(--surface-2)}
.lead{font-size:17px;color:var(--ink-soft);max-width:62ch}

.home-hero{padding:48px 0 40px}
.home-hero-in{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:48px;align-items:center}
@media (max-width:860px){.home-hero-in{grid-template-columns:1fr;gap:30px}.home-hero{padding-top:28px}}
.home-hero h1{font-size:clamp(32px,5vw,52px);line-height:1.08}
.home-hero h1 em{font-style:normal;color:var(--maroon)}
.home-hero .lead{margin:16px 0 24px}
.facts{list-style:none;padding:0;margin:28px 0 0;display:flex;flex-wrap:wrap;gap:10px 28px;color:var(--ink-soft);font-size:14px}
.facts b{display:block;font-family:var(--f-display);font-size:26px;color:var(--ink);font-variant-numeric:tabular-nums}
.hero-board{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;max-width:440px;justify-self:center;width:100%}
.hero-board .status{display:none}
.hero-board figcaption{font-size:14.5px;color:var(--ink-soft);margin-top:10px}
.board-ph{width:100%;max-width:400px;aspect-ratio:1;background:repeating-conic-gradient(var(--sq-light) 0 25%,var(--sq-dark) 0 50%) 0 0/25% 25%;opacity:.5}

.tracks{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,230px),1fr));gap:16px}
.track{display:flex;flex-direction:column;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--ink);transition:border-color .2s,transform .2s}
.track:hover{border-color:var(--maroon);transform:translateY(-2px)}
.track-n{font:600 12px var(--f-ui);color:var(--forest);letter-spacing:.06em}
.track h3{font-size:22px;color:var(--maroon)}
.track p{margin:0;color:var(--ink-soft);font-size:14.5px;flex:1}
.track-meta{font-size:12.5px;font-weight:600;color:var(--ink-soft);border-top:1px dashed var(--line);padding-top:10px;margin-top:6px}

.feature-course,.course-head{display:grid;grid-template-columns:190px minmax(0,1fr);gap:36px;align-items:start}
.feature-course .cover,.course-head .cover{width:190px}
@media (max-width:640px){.feature-course,.course-head{grid-template-columns:1fr;gap:20px}.feature-course .cover,.course-head .cover{width:140px}}
.feature-course h2,.course-head h1{font-size:clamp(28px,4vw,40px);color:var(--maroon)}
.by{font-size:14.5px;color:var(--ink-soft);margin:6px 0 12px}
.ticks{list-style:none;padding:0;margin:14px 0 20px;display:grid;gap:8px}
.ticks li{padding-left:26px;position:relative;font-size:15px}
.ticks li::before{content:"";position:absolute;left:2px;top:6px;width:12px;height:7px;border-left:2.5px solid var(--forest);border-bottom:2.5px solid var(--forest);transform:rotate(-45deg)}
.cover.soon{background:linear-gradient(160deg,#3a3430,#5b524a)}

.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:16px;counter-reset:s}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.steps li::before{content:counter(s);display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--maroon);color:var(--surface);font:700 14px var(--f-ui);margin-bottom:12px}
.steps b{display:block;font-family:var(--f-display);font-size:18px;margin-bottom:4px}
.steps span{color:var(--ink-soft);font-size:14.5px}
.mission{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:40px}
@media (max-width:760px){.mission{grid-template-columns:1fr;gap:10px}}
.mission h2{font-size:clamp(26px,3.5vw,36px)}
.mission p{color:var(--ink-soft);font-size:16px;margin:0 0 14px}

.page-head{padding:20px 0 26px;max-width:760px}
.page-head h1{font-size:clamp(32px,5vw,46px);margin-bottom:10px}
.chips{list-style:none;padding:0;margin:16px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.chips li{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:5px 13px;font-size:13.5px;color:var(--ink-soft)}
.empty{text-align:left}.empty h3{font-size:22px;margin-bottom:6px}
.section-head h2 a{color:inherit;text-decoration:none}.section-head h2 a:hover{color:var(--maroon)}

.crumbs{padding:16px 0 4px;font-size:13.5px}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:4px}
.crumbs li:not(:last-child)::after{content:"/";margin-left:6px;color:var(--line)}
.crumbs a{color:var(--ink-soft);text-decoration:none}.crumbs a:hover{color:var(--maroon)}
.crumbs span{color:var(--ink)}

.course-head{padding:14px 0 30px}
.course-body{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;padding-bottom:60px}
@media (max-width:900px){.course-body{grid-template-columns:1fr}}
.course-body h2{font-size:24px;margin-bottom:12px}
.lesson-list{list-style:none;padding:0;margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.lesson-list li{display:grid;grid-template-columns:36px minmax(0,1fr) auto;gap:12px;align-items:start;padding:14px 18px;border-bottom:1px solid var(--line)}
.lesson-list li:last-child{border-bottom:0}
.lesson-list li:not(.on){color:var(--ink-soft)}
.lesson-list .ln{font-family:var(--f-display);font-size:20px;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.lesson-list li.on .ln{color:var(--maroon)}
.lesson-list a{color:var(--ink);text-decoration:none}.lesson-list a:hover b{color:var(--maroon)}
.lesson-list p{margin:4px 0 0;font-size:14px;color:var(--ink-soft)}

/* lesson page */
.lessonbar{position:sticky;top:61px;z-index:15;background:var(--bg);border-bottom:1px solid var(--line)}
.lessonbar-in{display:flex;align-items:center;gap:14px;padding-block:6px}
@media (max-width:640px){.lessonbar{top:57px}}
.howto{font-size:14.5px!important;color:var(--ink-soft);margin-top:14px}
.plate-text{min-width:0}
.joinbox{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;background:var(--maroon-tint);border:1px solid color-mix(in srgb,var(--maroon) 25%,transparent);border-radius:12px;padding:16px 18px;margin-top:10px}
.joinbox b{display:block;font-family:var(--f-display);font-size:18px}
.joinbox span{font-size:14.5px;color:var(--ink-soft)}
.status.lock{background:var(--maroon-tint);color:var(--ink)}
.pager{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;max-width:700px;margin:50px auto 0;border-top:1px solid var(--line);padding-top:20px}
.xcard .board{max-width:none}
.prog-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line)}
.prog-row .bar{height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin-top:8px;max-width:360px}
.prog-row .bar i{display:block;height:100%;background:var(--forest)}
.values .pc img{width:38px;height:38px;display:block;margin:0 auto}

.toc{display:flex;gap:2px;overflow-x:auto;flex:1;min-width:0;scrollbar-width:none}
.toc::-webkit-scrollbar{display:none}
.toc a{font-size:13px;font-weight:600;color:var(--ink-soft);text-decoration:none;padding:5px 9px;border-radius:6px;white-space:nowrap}
.toc a:hover{background:var(--surface-2);color:var(--maroon)}
.prog{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);font-variant-numeric:tabular-nums;flex:none}
.prog i{display:block;width:90px;height:6px;background:var(--line);border-radius:3px;overflow:hidden}
.prog i b{display:block;height:100%;background:var(--forest);width:0;transition:width .4s}
@media (max-width:480px){.prog i{width:50px}}
.xcard .ctl{gap:4px}
.xcard .ctl button{min-width:32px;height:34px;padding:0 7px;font-size:13px}

/* header: home link + mobile menu */
.topbar{position:sticky}
.mainnav .home-link{display:inline-flex;align-items:center;gap:6px;color:var(--maroon)}
.menu-btn{display:none;background:none;border:1.5px solid var(--line);border-radius:10px;width:42px;height:40px;cursor:pointer;color:var(--ink);padding:0;order:3}
.menu-btn span{display:block;width:18px;height:2px;background:currentColor;margin:4px auto;transition:transform .2s,opacity .2s}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (max-width:640px){
  .menu-btn{display:block}
  .mainnav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;gap:0;margin:0;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:4px 20px 12px}
  .mainnav.open{display:flex}
  .mainnav a{padding:13px 0;border-bottom:1px solid var(--line);font-size:16px}
  .mainnav a:last-child{border-bottom:0}
}

/* lesson content types (all chapters) */
.lesson .col > p.var{padding-left:14px;border-left:2px solid var(--line);margin-left:4px}
.lesson .col > p.li{padding-left:18px}
.badge-l{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:6px;background:var(--forest);color:#fff;font:700 13px var(--f-ui);margin-right:4px;vertical-align:1px}
.pattern{margin:22px 0;display:grid;grid-template-columns:minmax(0,260px) minmax(0,1fr);gap:20px;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px}
.pattern .ctl,.pattern .status{display:none}
.pattern figcaption b{display:block;font-family:var(--f-display);font-size:18px;margin-bottom:4px}
.pattern figcaption span{color:var(--ink-soft);font-size:15.5px}
@media (max-width:600px){.pattern{grid-template-columns:1fr}}
.xgroup{grid-column:1/-1;font-family:var(--f-display);font-size:24px;margin:24px 0 0;padding-top:16px;border-top:2px solid var(--ink);scroll-margin-top:110px}
.note.next{margin-top:40px}
.line .lab{text-transform:none;letter-spacing:.02em;font-size:.8rem}
.pattern .cap{display:none}
.tbl{overflow-x:auto;margin:6px 0 14px;border:1px solid var(--line);border-radius:10px;background:var(--sheet)}
.tbl table{border-collapse:collapse;width:100%;font-size:14.5px;min-width:420px}
.tbl th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);background:var(--surface-2);padding:8px 10px}
.tbl td{padding:8px 10px;border-top:1px solid var(--line);vertical-align:top}
.tbl td.v{font-weight:700;font-size:12.5px;letter-spacing:.04em;color:var(--bad);white-space:nowrap}
.lesson .col > p.tblwrap{margin:0}
.tbl td.v.ok{color:var(--good)}
.gloss{display:grid;gap:0;margin:10px 0 30px;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.gloss div{padding:14px 18px;border-top:1px solid var(--line)}
.gloss div:first-child{border-top:0}
.gloss dt{font-family:var(--f-display);font-weight:600;font-size:18px;color:var(--maroon)}
.gloss dd{margin:4px 0 0;color:var(--ink-soft);font-size:16px}
.lesson-list li.part-h{display:block;padding:10px 18px;background:var(--surface-2);font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--forest)}

/* Whole lesson row is clickable */
.lesson-list li.on{position:relative;cursor:pointer;transition:background .15s}
.lesson-list li.on:hover{background:rgba(122,23,32,.04)}
.lesson-list li.on a.lt::after{content:"";position:absolute;inset:0;z-index:1}
.lesson-list li.on a.lt:focus-visible{outline:none}
.lesson-list li.on:focus-within{box-shadow:inset 0 0 0 2px rgba(122,23,32,.35)}
.lesson-list li .lstate a{position:relative;z-index:2}

.row3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width:640px){.row3{grid-template-columns:1fr}}

/* ---------- Covers: one colour per track ---------- */
.cover.t-tactics{background:linear-gradient(160deg,#16263F,#28456E)}
.cover.t-calculation{background:linear-gradient(160deg,#22372F,#3C6255)}
.cover.t-openings{background:linear-gradient(160deg,#4A0E17,#6B1420)}
.cover.t-middlegame{background:linear-gradient(160deg,#36213F,#5A3868)}
.cover.t-endgame{background:linear-gradient(160deg,#2B2622,#5A4A3A)}
.cover.t-strategy{background:linear-gradient(160deg,#3B3212,#6E5B1E)}
.cover.t-psychology{background:linear-gradient(160deg,#1E3A3E,#2F6066)}

/* ---------- Academy home ---------- */
.h-hero{padding:44px 0 52px;background:
  radial-gradient(1200px 400px at 85% 0%,rgba(181,137,44,.13),transparent 60%),var(--bg)}
.h-hero-in{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
@media (max-width:900px){.h-hero-in{grid-template-columns:1fr;gap:32px}.h-hero{padding-top:26px}}
.h-hero h1{font-size:clamp(34px,5.2vw,58px);line-height:1.04;letter-spacing:-.015em;color:var(--ink);max-width:14ch}
.h-hero .lead{font-size:clamp(16.5px,1.6vw,18.5px);color:var(--ink-soft);margin:20px 0 26px;max-width:46ch}
.h-count{display:flex;gap:34px;margin:30px 0 0;padding:18px 0 0;border-top:1px solid var(--line)}
.h-count div{display:flex;flex-direction:column-reverse}
.h-count dt{font-size:13.5px;color:var(--ink-soft)}
.h-count dd{margin:0;font-family:var(--f-display);font-size:clamp(26px,3vw,34px);font-weight:600;color:var(--maroon);font-variant-numeric:tabular-nums;line-height:1.1}

.h-puzzle{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:0 18px 50px rgba(74,14,23,.14);padding:20px 20px 16px;max-width:460px;width:100%;justify-self:center;position:relative}
.h-puzzle::before{content:"";position:absolute;inset:-1px;border-radius:18px;border-top:4px solid var(--gold);pointer-events:none}
.h-puzzle header{margin-bottom:12px}
.h-puzzle-kicker{margin:0 0 2px;font-size:13px;font-weight:600;color:var(--gold)}
.h-puzzle h2{font-size:24px;color:var(--maroon)}
.h-puzzle header p:last-child{margin:4px 0 0;color:var(--ink-soft);font-size:15px}
.h-puzzle .reveal{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line)}
.h-puzzle-more{margin:10px 0 0;font-size:15px}
.h-puzzle-foot{margin:10px 0 0;font-size:13px;color:var(--ink-soft)}

.h-resume{background:var(--maroon);color:#FBF1E7}
.h-resume-in{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;padding-block:16px}
.h-resume-in p{margin:0 auto 0 0}
.h-resume .btn-primary{background:#FBF1E7;color:var(--maroon-dark);border-color:#FBF1E7}
.h-resume .btn-ghost{color:#FBF1E7;border-color:rgba(251,241,231,.5)}
@media (prefers-color-scheme:dark){.h-resume{background:#4A0E17}}

.h-sub{margin:6px 0 0;max-width:62ch}
.h-paths{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
@media (max-width:1100px){.h-paths{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:860px){.h-paths{grid-template-columns:1fr}}
.h-path{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 18px}
.h-path h3{font-size:21px;color:var(--maroon)}
.h-path>p{margin:6px 0 14px;color:var(--ink-soft);font-size:15px}
.h-path ol{margin:0;padding:0;list-style:none;counter-reset:p}
.h-path li{counter-increment:p;display:grid;grid-template-columns:28px 1fr;column-gap:10px;padding:10px 0;border-top:1px solid var(--line)}
.h-path li::before{content:counter(p);grid-row:span 2;width:26px;height:26px;border-radius:50%;background:var(--maroon-tint);color:var(--maroon);display:grid;place-items:center;font:600 13px var(--f-ui)}
.h-path li a{font-weight:600;text-decoration:none;color:var(--ink)}
.h-path li a:hover{color:var(--maroon);text-decoration:underline}
.h-path li span{font-size:13px;color:var(--ink-soft)}

.h-shelf{display:grid;grid-template-columns:repeat(auto-fill,minmax(126px,1fr));gap:26px 18px}
.h-book{display:flex;flex-direction:column;gap:4px;text-decoration:none;color:var(--ink)}
.h-book .cover{width:100%;margin-bottom:8px;transition:transform .2s ease,box-shadow .2s ease}
.h-book:hover .cover,.h-book:focus-visible .cover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(36,31,27,.22)}
.h-book-track{font-size:12.5px;color:var(--gold);font-weight:600}
.h-book b{font-family:var(--f-display);font-weight:600;font-size:17px;line-height:1.2}
.h-book-meta{font-size:13px;color:var(--ink-soft)}
@media (prefers-reduced-motion:reduce){.h-book .cover{transition:none}}
.plate.h-puzzle{display:block;margin:0;grid-template-columns:none;border-radius:18px;padding:20px 20px 16px}
.fld[hidden]{display:none}

/* ---------- Board feedback ---------- */
.sq .mk{position:absolute;top:3%;right:3%;width:38%;height:38%;max-width:24px;max-height:24px;border-radius:50%;z-index:6;display:grid;place-items:center;
  font:700 clamp(10px,2.2vw,15px)/1 var(--f-ui);color:#fff;box-shadow:0 2px 6px rgba(0,0,0,.3);pointer-events:none;animation:mk-pop .18s ease-out}
.sq .mk.ok{background:#2f8a57}
.sq .mk.bad{background:#c4402f}
.sq .mk.wait{background:rgba(255,255,255,.9);border:3px solid rgba(0,0,0,.15);border-top-color:#6B1420;animation:mk-spin .7s linear infinite}
@keyframes mk-pop{from{transform:scale(.4);opacity:0}to{transform:scale(1);opacity:1}}
@keyframes mk-spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.sq .mk{animation:none}}
.board svg.arrows{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:7}
.next-ex{margin-left:4px;border:0;background:var(--maroon);color:#fff;border-radius:999px;padding:5px 12px;font:600 13px var(--f-ui);cursor:pointer}
.next-ex:hover{background:var(--maroon-dark)}
.ctl .snd{min-width:38px}

/* ---------- Play the computer ---------- */
.play{padding-block:22px 60px}
.play-title{font-size:clamp(26px,3.4vw,36px);margin-bottom:16px}
.play-grid{display:grid;grid-template-columns:minmax(0,560px) minmax(0,1fr);gap:32px;align-items:start}
@media (max-width:900px){.play-grid{grid-template-columns:1fr;gap:22px}}
.play-board{max-width:560px;width:100%}
.play-board .board{max-width:none}
.play-bar{display:flex;justify-content:space-between;align-items:baseline;gap:10px;padding:8px 2px;font-size:15px}
.pb-name{font-weight:700}
.pb-meta{color:var(--ink-soft);font-size:14px;font-variant-numeric:tabular-nums}
.play-ctl{margin-top:8px}
.play-side{display:grid;gap:16px}
.play-setup,.play-moves,.play-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.play-setup fieldset{border:0;padding:0;margin:0 0 14px}
.play-setup legend{font-weight:700;margin-bottom:8px}
.bots{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.bot{position:relative;cursor:pointer}
.bot input{position:absolute;opacity:0;pointer-events:none}
.bot-card{display:grid;grid-template-columns:1fr auto;gap:2px 8px;border:1px solid var(--line);border-radius:10px;padding:9px 11px;background:var(--bg);height:100%}
.bot-card small{grid-column:1/-1;color:var(--ink-soft);font-size:12.5px;line-height:1.35}
.bot-elo{font-variant-numeric:tabular-nums;color:var(--ink-soft);font-size:13px}
.bot input:checked+.bot-card{border-color:var(--maroon);box-shadow:inset 0 0 0 1px var(--maroon);background:var(--maroon-tint)}
.bot input:focus-visible+.bot-card{outline:3px solid var(--gold);outline-offset:2px}
.row-inline label{margin-right:16px;white-space:nowrap}
.rated{display:block;margin:0 0 14px}
.rated small{color:var(--ink-soft)}
.small{font-size:13.5px}
.play-moves h2,.play-card h2{font-size:19px;margin-bottom:8px}
#moves{margin:0 0 12px;padding:0;list-style:none;counter-reset:mv;max-height:260px;overflow:auto;font-variant-numeric:tabular-nums}
#moves li{display:grid;grid-template-columns:2.6em 1fr 1fr;padding:2px 0;counter-increment:mv}
#moves li::before{content:counter(mv) '.';color:var(--ink-soft)}
.play-card .big{font-family:var(--f-display);font-size:42px;font-weight:600;color:var(--maroon);margin:0;line-height:1}
.recent,.leaders{list-style:none;margin:10px 0 0;padding:0}
.leaders{counter-reset:l}
.recent li,.leaders li{display:flex;justify-content:space-between;gap:10px;padding:6px 0;border-top:1px solid var(--line);font-size:14.5px}
.leaders li::before{counter-increment:l;content:counter(l);color:var(--ink-soft);width:1.6em;flex:none}
.leaders li span{flex:1}
.leaders small{color:var(--ink-soft)}
.recent .up{color:#2f8a57}.recent .down{color:#c4402f}
.dots::after{content:"…";animation:none}

.h-play{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;display:flex;flex-wrap:wrap;align-items:center;gap:14px 24px}
.h-play h2{font-size:clamp(22px,2.6vw,28px);color:var(--maroon)}
.h-play p{margin:4px 0 0;color:var(--ink-soft);max-width:60ch}
.h-play .btn{margin-left:auto}

/* ---------- Puzzles ---------- */
.h-play .btn-primary{margin-left:auto}
.pz-prompt{font-weight:700;font-size:17px;margin:0 0 10px;min-height:1.5em}
.ctl .btn-next{background:var(--maroon);color:#fff;border-color:var(--maroon)}
.ctl .btn-next:disabled{opacity:.45}
.pz-after{margin-top:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.pz-after p{margin:0}
.pz-theme{font-weight:700;color:var(--maroon);margin-bottom:6px!important}
.pz-delta{margin:4px 0 0;font-weight:700;font-variant-numeric:tabular-nums;min-height:1.4em}
.pz-delta.up{color:#2f8a57}.pz-delta.down{color:#c4402f}
.pz-hist{list-style:none;padding:0;margin:10px 0 0;display:flex;flex-wrap:wrap;gap:6px}
.pz-hist li{font-size:12.5px;font-weight:700;border-radius:6px;padding:2px 7px;font-variant-numeric:tabular-nums}
.pz-hist li.up{background:#e3f2e9;color:#1f6b45}.pz-hist li.down{background:var(--bad-tint);color:#a3352a}
.pz-groups{display:flex;flex-wrap:wrap;gap:6px}
.pz-groups button{border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:999px;padding:6px 12px;font:600 13px var(--f-ui);cursor:pointer}
.pz-groups button.on{background:var(--maroon);border-color:var(--maroon);color:#fff}

/* ---------- Moves that led to the position ---------- */
.hist{margin-top:8px;font-size:13.5px;line-height:1.9;max-height:6.2em;overflow:auto;padding:4px 8px;background:var(--surface-2);border-radius:8px}
.hist .hl{font-weight:700;color:var(--ink-soft);margin-right:2px}
.hist .mv{border:0;background:none;padding:1px 3px;border-radius:4px;font:inherit;color:var(--ink);cursor:pointer}
.hist .mv:hover{background:rgba(107,20,32,.08)}
.hist .mv.cur{background:var(--maroon);color:#fff}
.hist .mv .mn{color:var(--ink-soft);margin-right:2px}
.hist .mv.cur .mn{color:#f3dfe1}

/* ---------- Admin ---------- */
.admin{padding-block:22px 60px;max-width:1280px}
.admin h1{font-size:clamp(26px,3vw,34px);margin-bottom:16px}
.adm-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:18px}
.adm-stats div{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.adm-stats b{display:block;font-family:var(--f-display);font-size:28px;color:var(--maroon);line-height:1.1}
.adm-stats span{font-size:13px;color:var(--ink-soft)}
.adm-filter{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:6px}
.adm-filter input,.adm-filter select{padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font:inherit;font-size:14px}
.adm-filter input{flex:1 1 260px}
.adm-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--sheet)}
.adm-table{width:100%;border-collapse:collapse;font-size:14px}
.adm-table th{text-align:left;font-size:12.5px;color:var(--ink-soft);background:var(--surface-2);padding:9px 10px;white-space:nowrap;position:sticky;top:0}
.adm-table td{padding:9px 10px;border-top:1px solid var(--line);vertical-align:top}
.adm-table td small{color:var(--ink-soft)}
.adm-table tr.off td{opacity:.5}
.adm-table a{text-decoration:none}
.adm-pages{display:flex;gap:8px;margin-top:12px}
.mainnav{gap:14px}.mainnav a{white-space:nowrap}

.pz-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:0 0 10px}
.pz-top .pz-prompt{margin:0}
.pz-steps{display:flex;gap:5px;flex:none}
.pz-steps span{width:12px;height:12px;border-radius:50%;border:2px solid var(--line);background:var(--sheet)}
.pz-steps span.on{background:#2f8a57;border-color:#2f8a57}

/* Puzzle Rush */
.rush-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.rush-bar{display:flex;align-items:center;gap:14px;margin:0 0 10px;padding:10px 14px;background:var(--sheet);border:1px solid var(--line);border-radius:var(--radius)}
.rush-clock{font:700 34px/1 var(--f-ui);font-variant-numeric:tabular-nums;color:var(--ink);min-width:3.2em}
.rush-clock.low{color:var(--bad);animation:rushPulse 1s infinite}
@keyframes rushPulse{50%{opacity:.55}}
.rush-score{flex:1;display:flex;align-items:baseline;gap:6px;justify-content:center}
.rush-score b{font:700 34px/1 var(--f-display);color:var(--maroon);display:inline-block}
.rush-score b.pop{animation:rushPop .35s}
@keyframes rushPop{40%{transform:scale(1.35)}}
.rush-score span{color:var(--ink-soft);font-size:14px}
.rush-lives{display:flex;gap:6px}
.rush-lives i{width:16px;height:16px;border-radius:50%;background:var(--good);box-shadow:inset 0 0 0 2px rgba(0,0,0,.08)}
.rush-lives i.lost{background:var(--bad-tint);box-shadow:inset 0 0 0 2px var(--bad)}
.rush-boardwrap{position:relative}
.rush-cover{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;background:rgba(20,12,10,.55);color:#fff;border-radius:4px;font-size:17px;line-height:1.5;padding:20px;z-index:5}
.rush-cover[hidden]{display:none}
.rush-big{font-size:54px;margin:0 0 6px;line-height:1}
.rush-tiles{list-style:none;display:flex;flex-wrap:wrap;gap:5px;margin:12px 0 0;padding:0}
.rush-tiles li{min-width:42px;padding:5px 6px;border-radius:6px;text-align:center;font:600 12.5px var(--f-ui);font-variant-numeric:tabular-nums}
.rush-tiles li.ok{background:var(--good-bg);color:var(--good);border:1px solid var(--good)}
.rush-tiles li.bad{background:var(--bad-bg);color:var(--bad);border:1px solid var(--bad)}
.rush-tiles li[role=button]{cursor:pointer}
.rush-tiles li.sel{outline:3px solid var(--gold);outline-offset:1px}
.rush-modes{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:4px 0 14px}
.rush-modes button{border:2px solid var(--line);background:var(--bg);color:var(--ink);border-radius:var(--radius);padding:14px 8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:4px;font-family:var(--f-ui)}
.rush-modes button b{font-size:22px}
.rush-modes button small{color:var(--ink-soft);font-size:13px}
.rush-modes button.on{border-color:var(--maroon);background:var(--maroon-tint)}
.rush-go{width:100%;font-size:18px;padding:13px}
.rush-rules{margin:14px 0 8px;padding-left:18px;font-size:14px;color:var(--ink-2);line-height:1.55}
.rush-final{display:flex;align-items:baseline;gap:8px;margin:4px 0}
.rush-final b{font:700 54px/1 var(--f-display);color:var(--maroon)}
.rush-final span{color:var(--ink-soft)}
.rush-newbest{color:var(--gold);font-weight:700;margin:4px 0}
.rush-again{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}
.rush-lbtabs{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 6px}
.rush-lbtabs button{border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:999px;padding:5px 10px;font:600 12.5px var(--f-ui);cursor:pointer}
.rush-lbtabs button.on{background:var(--maroon);border-color:var(--maroon);color:#fff}
.pz-rushlink{display:flex;align-items:center;gap:12px;justify-content:space-between;background:var(--maroon);color:#fff;border-radius:var(--radius);padding:14px 16px;text-decoration:none}
.pz-rushlink:hover{background:var(--maroon-dark)}
.pz-rushlink b{font-size:17px}
.pz-rushlink small{display:block;opacity:.85;font-size:13px;margin-top:2px}
@media (max-width:640px){.rush-clock,.rush-score b{font-size:28px}.rush-bar{gap:8px;padding:8px 10px}}
.rush-cover-go{margin-top:14px;font-size:17px;padding:11px 22px}
body.rush-live .rush-cover{display:none}
/* teaching marks on lesson boards */
.sq .dt{position:absolute;width:30%;height:30%;border-radius:50%;background:rgba(47,138,87,.75);z-index:2;pointer-events:none}
.sq .dt.x{width:84%;height:84%;background:transparent;border:4px solid rgba(196,64,47,.8)}
.sq .hl{position:absolute;inset:0;background:rgba(232,176,48,.55);z-index:0;pointer-events:none}
.cover.t-basics{background:linear-gradient(160deg,#1F4D2E,#3C7A4A)}
.recent .rv{margin-left:auto;margin-right:10px;font-size:13px}
.play [hidden]{display:none!important}

/* ---------- Game review (side panel) ---------- */
.pb-wrap{display:flex;gap:8px;align-items:stretch}
.pb-wrap>#pboard{flex:1;min-width:0}
.rv-evalbar{position:relative;flex:0 0 18px;border-radius:5px;overflow:hidden;background:#f4efe6;box-shadow:inset 0 0 0 1px rgba(0,0,0,.15)}
.rv-evalbar i{position:absolute;left:0;right:0;top:0;background:#3b342d;transition:height .35s ease}
.rv-evalbar.flip i{top:auto;bottom:0}
.rv-evalbar span{position:absolute;left:0;right:0;bottom:3px;font:700 9px/1 var(--f-ui);text-align:center;color:#3b342d;writing-mode:vertical-rl;transform:rotate(180deg)}
.rv-evalbar.wl span{bottom:auto;top:3px;color:#f4efe6}
.rv-evalbar.flip span{bottom:auto;top:3px}.rv-evalbar.flip.wl span{top:auto;bottom:3px}
body.reviewing #setup,body.reviewing #movesBox,body.reviewing .play-side>.play-card,body.reviewing .play-side>p,body.reviewing #pstatus,body.reviewing #btnTakeback,body.reviewing #btnResign,body.reviewing .play-bar{display:none!important}
@media (min-width:901px){body.reviewing .play-board-col{position:sticky;top:76px}}
.rv{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px 18px;box-shadow:var(--shadow)}
.rv-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:10px}
.rv-top small{display:block;font:700 11px/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
.rv-top h2{margin:4px 0 0;font-size:21px}
.rv-x{border:1px solid var(--line);background:var(--bg);color:var(--ink);width:32px;height:32px;border-radius:50%;cursor:pointer;font-size:14px;flex:none}
.rv-x:hover{background:var(--maroon-tint)}
.rv-prog{padding:18px 0 8px}
.rv-bar{height:10px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.rv-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--maroon),var(--gold));transition:width .25s}
.rv-prog span{display:block;margin-top:8px;font-size:14px;color:var(--ink-soft)}
.rv-acc{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.rv-card{display:grid;justify-items:center;gap:2px;padding:12px 8px;border-radius:12px;background:var(--surface-2);text-align:center}
.rv-card.me{background:var(--maroon-tint);box-shadow:inset 0 0 0 1.5px var(--maroon)}
.rv-who{display:flex;align-items:center;gap:6px;font:600 13px var(--f-ui);color:var(--ink-soft)}
.rv-who i{width:12px;height:12px;border-radius:50%;border:1.5px solid var(--ink-soft)}
.rv-who i.pc-w{background:#fff}.rv-who i.pc-b{background:#2a2420}
.rv-pct{font:700 34px/1.05 var(--f-display);color:var(--ink)}
.rv-pct small{font-size:18px;margin-left:1px}
.rv-lbl{font-size:12px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em}
.rv-chips{display:flex;gap:5px;margin-top:6px;flex-wrap:wrap;justify-content:center}
.rv-chips em{font:700 12px/1 var(--f-ui);font-style:normal;padding:4px 7px;border-radius:99px}
.inacc{--k:#b8860b}.mistake{--k:#d9731a}.blunder{--k:#c4402f}.best{--k:#2f8a57}.good{--k:#5a9a6e}.ok{--k:#8a8178}.try{--k:#6B1420}
.rv-chips em{color:var(--k);background:color-mix(in srgb,var(--k) 14%,transparent)}
.rv-graph{display:block;width:100%;height:96px;margin:12px 0 10px;cursor:pointer;border-radius:10px;overflow:hidden}
.rv-graph .bg{fill:#3b342d}.rv-graph .area{fill:#f4efe6}
.rv-graph .mid{stroke:#b9a88a;stroke-width:1;stroke-dasharray:4 4}
.rv-graph .cur{stroke:var(--gold);stroke-width:3}
.rv-graph circle{stroke:#fff;stroke-width:1.5}.rv-graph circle.blunder{fill:#c4402f}.rv-graph circle.mistake{fill:#d9731a}
.rv-coach{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:12px;background:color-mix(in srgb,var(--k,#8a8178) 10%,var(--surface));border-left:4px solid var(--k,#8a8178);min-height:76px}
.rv-coach.k-best{--k:#2f8a57}.rv-coach.k-good{--k:#5a9a6e}.rv-coach.k-ok{--k:#8a8178}.rv-coach.k-inacc{--k:#b8860b}.rv-coach.k-mistake{--k:#d9731a}.rv-coach.k-blunder{--k:#c4402f}.rv-coach.k-try{--k:#6B1420}
.rv-ic{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--k);color:#fff;font:800 14px/1 var(--f-ui)}
.rv-coach .rv-t{display:block;font-size:16px;font-weight:700;margin-bottom:3px;color:var(--ink)}
.rv-coach p{margin:0 0 6px;font-size:14.5px;line-height:1.5;color:var(--ink-soft)}
.rv-coach .red{color:#c4402f;font-weight:600}.rv-coach .grn{color:#2f8a57;font-weight:600}
.rv-coach .btn{margin-top:4px}
.rv-done{color:#2f8a57!important;font-weight:600}
.rv-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:10px 0}
.rv-nav button{border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:8px;padding:8px 0;cursor:pointer;font-size:14px}
.rv-nav button:hover{background:var(--maroon-tint)}
.rv-moves{list-style:none;margin:0 0 12px;padding:0;max-height:230px;overflow:auto;border:1px solid var(--line);border-radius:10px;font-variant-numeric:tabular-nums;position:relative}
.rv-moves li{display:grid;grid-template-columns:2.4em 1fr 1fr;align-items:center}
.rv-moves li:nth-child(odd){background:var(--surface-2)}
.rv-moves .n{color:var(--ink-soft);font-size:13px;text-align:right;padding-right:8px}
.rv-moves .mv{border:0;background:none;font:inherit;font-size:14.5px;padding:5px 8px;cursor:pointer;color:var(--ink);text-align:left;border-radius:6px;margin:1px}
.rv-moves .mv:hover{background:var(--maroon-tint)}
.rv-moves .mv sup{font:800 11px var(--f-ui);margin-left:2px;color:var(--k)}
.rv-moves .mv.k-inacc{--k:#b8860b}.rv-moves .mv.k-mistake{--k:#d9731a}.rv-moves .mv.k-blunder{--k:#c4402f;color:#c4402f;font-weight:600}.rv-moves .mv.k-best{--k:#2f8a57}
.rv-moves .mv.on{background:var(--maroon);color:#fff}.rv-moves .mv.on sup{color:#fff}
.rv-learn{width:100%}
@media (max-width:900px){.rv{box-shadow:none;padding:12px 12px 14px}.rv-moves{max-height:170px}.rv-pct{font-size:28px}
  body.reviewing .play-grid{gap:10px}body.reviewing .play-bar,body.reviewing .play-ctl{display:none}
  #anBody{display:flex;flex-direction:column}#anNote{order:1}.rv-nav{order:2}.rv-learn{order:3;margin-bottom:12px}.rv-acc{order:4}.rv-graph{order:5}.rv-moves{order:6}
  .rv-top{margin-bottom:8px}.rv-top h2{font-size:18px}}

/* ---------- My dashboard ---------- */
.db{padding-top:26px;padding-bottom:50px}
.db-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.db-kick{margin:0;font:700 12px/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
.db-head h1{margin:6px 0 0;font-size:clamp(28px,4vw,38px)}
.db-head-btns{display:flex;gap:10px;flex-wrap:wrap}
.db-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:22px}
.db-tile{position:relative;display:grid;gap:2px;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:14px}
.db-tile .db-ic{position:absolute;top:14px;right:16px;font-size:20px;opacity:.9}
.db-tile b{font:700 34px/1.05 var(--f-display);color:var(--ink)}
.db-tile span{font-size:14px;color:var(--ink-soft)}
.db-tile small{font-size:12.5px;color:var(--ink-soft);margin-top:4px}
.db-tile.streak{background:linear-gradient(150deg,var(--maroon),var(--maroon-dark));border-color:transparent}
.db-tile.streak b,.db-tile.streak span,.db-tile.streak small{color:#fff}.db-tile.streak small{opacity:.8}
.db-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:20px;align-items:start}
@media (max-width:900px){.db-grid{grid-template-columns:1fr}}
.db-col{display:grid;gap:20px;min-width:0}
.db-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.db-card h2{font-size:20px;margin:0 0 10px}
.db-step{display:flex;align-items:center;gap:14px;padding:12px 14px;margin-top:8px;border-radius:12px;background:var(--surface-2);text-decoration:none;color:var(--ink);transition:transform .15s,background .15s}
.db-step:hover{background:var(--maroon-tint);transform:translateX(2px)}
.db-step .db-ic{font-size:22px;width:40px;height:40px;display:grid;place-items:center;border-radius:10px;background:var(--surface);flex:none}
.db-step b{display:block;font-size:15.5px}.db-step small{display:block;font-size:13.5px;color:var(--ink-soft);margin-top:2px}
.db-step .go{margin-left:auto;color:var(--maroon);font-weight:700;font-size:18px}
.db-courses{display:grid;gap:4px}
.db-course{display:flex;align-items:center;gap:12px;padding:10px 8px;border-radius:10px;text-decoration:none;color:var(--ink)}
.db-course:hover{background:var(--surface-2)}
.db-cv{width:34px;height:44px;border-radius:4px 6px 6px 4px;flex:none;box-shadow:inset 3px 0 0 rgba(0,0,0,.18)}
.db-cv.t-basics{background:linear-gradient(160deg,#1F4D2E,#3C7A4A)}.db-cv.t-tactics{background:linear-gradient(160deg,#16263F,#28456E)}.db-cv.t-calculation{background:linear-gradient(160deg,#22372F,#3C6255)}
.db-cv.t-openings{background:linear-gradient(160deg,#4A0E17,#6B1420)}.db-cv.t-middlegame{background:linear-gradient(160deg,#36213F,#5A3868)}.db-cv.t-endgame{background:linear-gradient(160deg,#2B2622,#5A4A3A)}
.db-cv.t-strategy{background:linear-gradient(160deg,#3B3212,#6E5B1E)}.db-cv.t-psychology{background:linear-gradient(160deg,#1E3A3E,#2F6066)}
.db-cbody{flex:1;min-width:0;display:grid;gap:3px}
.db-cbody b{font-size:15px}.db-cbody small{font-size:12.5px;color:var(--ink-soft)}
.db-bar{display:block;height:7px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.db-bar i{display:block;height:100%;border-radius:99px;background:var(--maroon)}
.db-course.complete .db-bar i{background:var(--good)}
.db-pct{font:700 14px var(--f-ui);color:var(--ink-soft);min-width:3em;text-align:right}
.db-cal{display:flex;gap:4px;overflow-x:auto;padding:4px 0}
.db-cal .wk{display:grid;grid-template-rows:repeat(7,1fr);gap:4px}
.db-cal i,.db-legend i{display:block;width:15px;height:15px;border-radius:4px;background:var(--surface-2)}
.db-cal i.l1,.db-legend i.l1{background:#c7e3d0}.db-cal i.l2,.db-legend i.l2{background:#86c39b}.db-cal i.l3,.db-legend i.l3{background:#3f9563}.db-cal i.l4,.db-legend i.l4{background:#1f6640}
.db-cal i.lf{background:transparent}
.db-legend{display:flex;align-items:center;gap:4px;margin-top:8px;font-size:12px;color:var(--ink-soft)}
.db-legend span:first-child{margin-right:2px}.db-legend span:last-child{margin-left:2px}
@media (prefers-color-scheme:dark){.db-cal i.l1,.db-legend i.l1{background:#1d3a29}.db-cal i.l2,.db-legend i.l2{background:#2c6644}.db-cal i.l3,.db-legend i.l3{background:#45985f}.db-cal i.l4,.db-legend i.l4{background:#7fd09a}}
.db-tabs{display:flex;align-items:center;gap:6px;margin-bottom:6px}
.db-tabs h2{margin:0 auto 0 0}
.db-tabs button{border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:99px;padding:5px 12px;font:600 13px var(--f-ui);cursor:pointer}
.db-tabs button.on{background:var(--maroon);border-color:var(--maroon);color:#fff}
.db-chart{position:relative}
.db-chart svg{display:block;width:100%;height:auto;touch-action:pan-y}
.db-chart .g{stroke:var(--line);stroke-width:1}
.db-chart .t{font:11px var(--f-ui);fill:var(--ink-soft);text-anchor:end}
.db-chart .l{fill:none;stroke:var(--maroon);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.db-chart .end{fill:var(--maroon);stroke:var(--surface);stroke-width:2}
.db-chart .hx{stroke:var(--ink-soft);stroke-width:1;stroke-dasharray:3 3;opacity:0}
.db-chart .hd{fill:var(--surface);stroke:var(--maroon);stroke-width:2;opacity:0}
.db-chart.hov .hx,.db-chart.hov .hd{opacity:1}
.db-tip{position:absolute;pointer-events:none;background:var(--ink);color:var(--surface);font-size:12.5px;padding:5px 9px;border-radius:7px;white-space:nowrap}
.db-tip b{font-size:14px;margin-right:4px}
.db-empty{padding:20px 0}
.db-theme{display:grid;grid-template-columns:minmax(0,9.5em) 1fr 3em 2.2em;align-items:center;gap:10px;padding:7px 4px;border-radius:8px;text-decoration:none;color:var(--ink);font-size:14px}
.db-theme:hover{background:var(--surface-2)}
.db-theme .db-bar{height:9px}
.db-theme .db-bar i.lo{background:var(--bad)}.db-theme .db-bar i.mid{background:var(--gold)}.db-theme .db-bar i.hi{background:var(--good)}
.db-theme b{text-align:right;font-variant-numeric:tabular-nums}.db-theme small{color:var(--ink-soft);font-size:12px;text-align:right}
.db-recent{list-style:none;margin:0;padding:0}
.db-recent li{display:flex;align-items:center;gap:12px;padding:9px 0;border-top:1px solid var(--line)}
.db-recent li:first-child{border-top:0}
.db-recent a{flex:1;min-width:0;text-decoration:none;color:var(--ink)}
.db-recent a b{display:block;font-size:14.5px;font-weight:600}.db-recent a small{color:var(--ink-soft);font-size:13px}
.db-recent time{font-size:12.5px;color:var(--ink-soft);white-space:nowrap}
.db-dot{width:10px;height:10px;border-radius:50%;flex:none}
.db-dot.k-ex{background:var(--maroon)}.db-dot.k-pz{background:var(--gold)}.db-dot.k-pl{background:#2f6f8a}.db-dot.k-ru{background:#d9731a}
.db-link{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--ink)}
.db-link b{font-size:18px}.db-link span:nth-child(2){flex:1;color:var(--ink-soft)}

.db-more summary{cursor:pointer;padding:10px 8px 4px;font:600 14px var(--f-ui);color:var(--maroon);list-style:none}
.db-more summary::before{content:'＋ '}.db-more[open] summary::before{content:'－ '}
@media (max-width:600px){.db-tiles{grid-template-columns:1fr 1fr;gap:10px}.db-tile.streak{grid-column:1/-1}.db-tile{padding:13px 14px}.db-tile b{font-size:28px}.db-head-btns .btn{flex:1}
  .db-card{padding:16px 14px}.db-theme{grid-template-columns:minmax(0,7.5em) 1fr 2.8em}.db-theme small{display:none}}

/* ---------- Daily puzzle ---------- */
.dl-head{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;flex-wrap:wrap;margin:6px 0 18px}
.dl-kick{margin:0;font:700 12px/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
.dl-head h1{margin:6px 0 0;font-size:clamp(26px,4vw,36px)}
.dl-days{display:flex;gap:8px}
.dl-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.dl-card h2{font-size:19px;margin:0 0 8px}
.dl-task h2{font-size:22px;margin:10px 0 6px;color:var(--maroon)}
.dl-level{display:inline-block;font:700 12px/1 var(--f-ui);letter-spacing:.06em;text-transform:uppercase;color:#fff;padding:6px 11px;border-radius:99px}
.dl-level.l-easy{background:#2F8A57}.dl-level.l-medium{background:#B5892C}.dl-level.l-hard{background:#B23B2E}
.dl-stats{margin:10px 0 0;font-size:14.5px;color:var(--ink-soft)}.dl-stats b{color:var(--ink)}
.dl-share.pop{animation:dlPop .5s ease;border-color:#25D366;box-shadow:0 0 0 3px rgba(37,211,102,.18)}
@keyframes dlPop{40%{transform:scale(1.025)}}
.dl-btns{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.dl-wa{background:#25D366;color:#fff;border-color:#25D366;display:inline-flex;align-items:center;gap:8px;font-weight:700}
.dl-wa:hover{background:#1ebe5a;color:#fff}
.dl-wa svg{width:20px;height:20px}
.dl-strip{list-style:none;margin:6px 0 10px;padding:0;display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.dl-strip a{display:grid;justify-items:center;padding:6px 0;border-radius:9px;background:var(--surface-2);text-decoration:none;color:var(--ink);border:2px solid transparent}
.dl-strip small{font-size:11px;color:var(--ink-soft)}.dl-strip b{font-size:15px}
.dl-strip a.ok{background:var(--good-bg);color:var(--good)}.dl-strip a.no{background:var(--bad-tint);color:var(--bad)}
.dl-strip a.cur{border-color:var(--maroon)}
.dl-more a{display:grid;padding:10px 12px;margin-top:6px;border-radius:10px;background:var(--surface-2);text-decoration:none;color:var(--ink)}
.dl-more a:hover{background:var(--maroon-tint)}.dl-more a span{font-size:13.5px;color:var(--ink-soft)}
.h-daily-board{display:block}.h-daily-board .ex{pointer-events:none}.h-daily-go{width:100%;margin-top:12px}
.pz-dailylink{background:#2F6F4F}.pz-dailylink:hover{background:#245a3f}
.xcard.noboard .board,.xcard.noboard .cap,.xcard.noboard .ctl{display:none}.xcard.noboard .ex-board{min-height:0}.xcard.noboard .board-ph{display:none}