:root{
  --blue:#2323FE;--blue-mid:#6464FF;--lav:#8C8CFF;--blue-soft:#EEEEFF;
  --ink:#111214;--g1:#F2F3F5;--g2:#E3E5E8;--g3:#8A9097;--g4:#5E646B;
  --bg:#FFFFFF;--page:#F4F4F1;--line:#E3E5E8;--ok:#1F9D63;--bad:#D14343;--warn:#C98A06;--fire:#F26B1D;
}
@media (prefers-color-scheme:dark){:root{--ink:#ECEDEF;--g1:#1E2024;--g2:#2B2E33;--g4:#B4B9C0;--bg:#16171A;--page:#0E0F11;--line:#2B2E33;--blue-soft:#1D1D45;--blue:#6E6EFF}}
*{box-sizing:border-box}
html,body{margin:0;background:var(--page);color:var(--ink);font:15px/1.5 Poppins,system-ui,-apple-system,sans-serif;-webkit-text-size-adjust:100%}
button{font:inherit;cursor:pointer;color:inherit}
a{color:var(--blue)}
.boot{min-height:100vh;display:grid;place-items:center}
.wrap{max-width:520px;margin:0 auto;padding:max(14px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) calc(90px + env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left))}
.wrap.nonav{padding-bottom:calc(30px + env(safe-area-inset-bottom))}
.top{display:flex;justify-content:space-between;align-items:center;margin:4px 0 16px}
.top img{height:30px;display:block}
.label{font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--g4)}
h1{font-size:24px;margin:0 0 6px;font-weight:600;letter-spacing:-.01em}
h2{font-size:18px;margin:0;font-weight:600}
.muted{color:var(--g4)}.small{font-size:12.5px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:14px;margin-top:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:12px 18px;font-weight:600;background:var(--blue);color:#fff;text-decoration:none;min-height:46px}
.btn.full{width:100%}.btn.ghost{background:var(--g1);color:var(--ink)}.btn.white{background:#fff;color:#2323FE}
.btn:disabled{opacity:.5}
.field{display:block;margin:12px 0}
.field input{width:100%;margin-top:6px;padding:13px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;font-size:16px}
.err{color:var(--bad);font-weight:500;margin:8px 0}
.note{background:var(--blue-soft);border-radius:14px;padding:12px;font-size:13px}
.gbar{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.gstat{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:10px 6px;text-align:center}
.gstat .n{font-size:20px;font-weight:700;line-height:1.15}.gstat .t{font-size:10.5px;color:var(--g4)}
.gstat.fire .n{color:var(--fire)}
.today{background:#2323FE;color:#fff;border-radius:18px;padding:18px;margin-top:12px}
.today .label{color:#ffffffb8}
.msg{display:flex;gap:10px;align-items:flex-start;background:var(--blue-soft);border-radius:14px;padding:12px;font-size:13.5px;margin-top:12px}
.row{display:flex;gap:12px;align-items:center}
.spread{display:flex;justify-content:space-between;align-items:center;gap:10px}
.ring{--p:0;width:58px;height:58px;border-radius:50%;background:conic-gradient(var(--blue) calc(var(--p)*1%),var(--g2) 0);display:grid;place-items:center;flex:none}
.ring b{width:44px;height:44px;border-radius:50%;background:var(--bg);display:grid;place-items:center;font-size:13px}
.week{display:flex;gap:5px;margin-top:8px}
.week i{flex:1;height:30px;border-radius:8px;background:var(--g2);display:grid;place-items:center;font-style:normal;font-size:10px;color:var(--g4)}
.week i.on{background:var(--blue);color:#fff}.week i.t{outline:2px solid var(--blue);outline-offset:1px}
.bar{height:8px;background:var(--g2);border-radius:99px;overflow:hidden}.bar>i{display:block;height:100%;background:var(--blue);border-radius:99px}
.badges{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.badge{text-align:center;font-size:10.5px;color:var(--g4)}
.badge i{display:grid;place-items:center;width:46px;height:46px;margin:0 auto 4px;border-radius:14px;background:var(--g1);font-style:normal;font-size:20px;filter:grayscale(1);opacity:.4}
.badge.on i{background:var(--blue-soft);filter:none;opacity:1}.badge.on{color:var(--ink);font-weight:500}
nav.tabs{position:fixed;left:0;right:0;bottom:0;background:var(--bg);border-top:1px solid var(--line);display:flex;justify-content:center;padding-bottom:env(safe-area-inset-bottom);z-index:5}
nav.tabs a{flex:1;max-width:130px;text-align:center;padding:9px 0 8px;font-size:11px;color:var(--g4);text-decoration:none}
nav.tabs a svg{display:block;width:24px;height:24px;margin:0 auto 2px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
nav.tabs a.on svg{stroke-width:2;color:var(--blue)}
nav.tabs a.on::before{content:'';display:block;width:22px;height:3px;border-radius:0 0 3px 3px;background:var(--blue);margin:-9px auto 6px}
.pref{display:grid;grid-template-columns:70px 1fr 38px;gap:10px;align-items:center;margin:6px 0;font-size:13px}
nav.tabs a.on{color:var(--blue);font-weight:600}
.back{color:var(--blue);text-decoration:none;font-weight:500}
.ctx{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:14px;margin-top:12px;font-size:14.5px}
.ctx h3{margin:0 0 6px;font-size:14.5px;white-space:normal}
.q{margin-top:16px}
.q .qt{font-weight:500;margin-bottom:8px;white-space:pre-line}
.opt{display:block;width:100%;text-align:left;padding:11px 12px;margin:6px 0;border-radius:12px;border:1.5px solid var(--line);background:var(--bg);font-size:14.5px}
.opt.sel{border-color:var(--blue);background:var(--blue-soft);color:var(--blue);font-weight:500}
.opt.right{border-color:var(--ok);background:#1F9D6314}
.opt.wrong{border-color:var(--bad);background:#D1434314}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips .opt{display:inline-block;width:auto;margin:0;padding:8px 12px}
.grid-row{padding:10px 0;border-top:1px solid var(--line)}.grid-row:first-of-type{border-top:0}
.grid-row .fr{margin-bottom:6px}
.audio{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:12px;margin-top:12px}
.audio audio{width:100%}
.credit{font-size:10.5px;color:var(--g3);line-height:1.45;margin-top:18px;border-top:1px solid var(--line);padding-top:10px}
.sticky{position:sticky;bottom:calc(10px + env(safe-area-inset-bottom));margin-top:18px}
.celebrate{text-align:center;padding-top:10px}
.celebrate .big{font-size:56px;line-height:1}
.xp{display:inline-block;background:#2323FE;color:#fff;font-weight:700;border-radius:999px;padding:6px 14px;margin:10px 0}
.flames{display:flex;justify-content:center;gap:6px;margin:12px 0}
.flames span{width:34px;height:40px;border-radius:10px;background:var(--g1);display:grid;place-items:center;font-size:11px;color:var(--g4)}
.flames span.on{background:#F26B1D1f;color:var(--fire);font-weight:700}.flames span.t{background:var(--fire);color:#fff;font-weight:700}
.ok{color:var(--ok)}.bad{color:var(--bad)}
.kclist{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.kclist a{display:block;text-align:center;text-decoration:none;color:var(--g4);background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:10px 0;font-size:13px;font-weight:600}
.kclist a b{display:block;font-size:10.5px;font-weight:500}
.kclist a.done{background:var(--blue-soft);color:var(--blue);border-color:transparent}
.kclist a.low{background:#C98A061a;color:var(--warn);border-color:transparent}
.kcpick{display:grid;grid-template-columns:repeat(10,1fr);gap:4px}
.kcpick button{border:1px solid var(--line);background:var(--bg);color:var(--g4);border-radius:6px;padding:6px 0;font-size:11px}
.kcpick button.on{background:var(--blue);border-color:var(--blue);color:#fff}
.heat{display:grid;grid-template-columns:repeat(15,1fr);gap:3px}
.heat i,.heat a{display:block;aspect-ratio:1;border-radius:3px;background:var(--g2)}.heat .d{background:var(--lav)}.heat .x{background:repeating-linear-gradient(45deg,var(--g2) 0 2px,transparent 2px 5px)}.heat .p{background:var(--blue)}
.redo{margin-top:12px;border-top:1px solid var(--line);padding-top:10px}.redo .row{margin:6px 0}.redo input{flex:1;padding:11px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;font-size:16px;min-width:0}
.obcard{border:1.5px solid var(--blue);margin-top:0;margin-bottom:12px}
.obsteps{display:flex;gap:8px;margin-bottom:12px}.obsteps span{flex:1;text-align:center;font-size:12.5px;padding:7px 0;border-radius:10px;background:var(--g1);color:var(--g4);font-weight:500}.obsteps span.ok{background:#1F9D6314;color:var(--ok)}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(84px + env(safe-area-inset-bottom));background:#111214;color:#fff;padding:10px 16px;border-radius:12px;font-size:13.5px;z-index:9;max-width:calc(100% - 32px)}
.install{background:var(--bg);border:1px dashed var(--blue);border-radius:14px;padding:12px;margin-top:12px;font-size:13px}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.exim{display:block;width:100%;height:auto;border-radius:10px;margin-top:6px;background:#fff;white-space:normal}
.ctx .exim{margin-top:8px}
.qt u,.ctx u,.fr u{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;text-decoration-color:var(--blue)}
.qt b,.ctx b,.fr b{font-weight:700}
.kclist a.skip{opacity:.5;border-style:dashed}
.kclist a.skip b{font-size:9px}

/* v7: navigation, lists and readable texts */
nav.tabs a{font-size:10.5px}
.link-card{display:block;text-decoration:none;color:inherit}
.today.link-card{color:#fff}
.big-t{font-size:22px;margin:6px 0 2px}
.today-sub{opacity:.92;font-size:13px;margin-bottom:14px}
.today .btn.white{pointer-events:none}
.next-kc .kc-t{font-weight:700;font-size:18px;margin-top:2px}
.next-kc .btn{pointer-events:none}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.mini{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:12px;display:flex;flex-direction:column;gap:4px;min-width:0}
.mini.empty{border-style:dashed}
.mini-main{font-weight:600;font-size:13.5px;line-height:1.35}
.mini-more{font-size:12px;color:var(--blue);margin-top:auto;font-weight:600}
.chips-s{display:flex;flex-wrap:wrap;gap:4px}.chips-s span{font-size:11px;background:var(--blue-soft);color:var(--blue);border-radius:99px;padding:2px 8px;font-weight:600}
.lvl-badge{display:inline-grid;place-items:center;min-width:52px;height:40px;padding:0 10px;border-radius:12px;background:var(--blue);color:#fff;font-weight:700;font-size:18px;align-self:flex-start}
.btn.sm{min-height:34px;padding:6px 12px;font-size:13px;margin-top:auto}
.res-h{font-weight:700;font-size:17px;margin:6px 0}
.instr{display:flex;gap:10px;align-items:flex-start;background:var(--blue-soft);border-radius:14px;padding:10px 12px;margin-top:12px;font-size:14px}
.instr p{margin:0;font-weight:500}
.passage{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:16px;margin-top:12px;text-align:left}
.passage h3{margin:0 0 10px;font-size:17px;line-height:1.3}
.passage p{margin:0 0 12px;font-size:15px;line-height:1.65;text-align:left;hyphens:manual}
.passage p:last-child{margin-bottom:0}
.qs{margin-top:6px}
.qn{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);margin-bottom:4px}
.q .qt{font-size:15px;line-height:1.5;text-align:left}
.qf{font-weight:400;margin-top:6px;padding:8px 10px;background:var(--g1);border-radius:10px}
.legend{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:12px;color:var(--g4);margin:12px 0 4px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.lg{display:inline-block;width:12px;height:12px;border-radius:4px;background:var(--g2)}
.lg.done{background:var(--blue)}.lg.next{background:#fff;outline:2px solid var(--blue)}.lg.open{background:var(--bg);border:1.5px solid var(--g3)}.lg.low{background:var(--warn)}.lg.locked{background:var(--g2)}
.lg.skip{background:repeating-linear-gradient(45deg,var(--g2) 0 2px,transparent 2px 5px);border:1px solid var(--g2)}
details.lvl summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;list-style:none;font-size:15px}
details.lvl summary::-webkit-details-marker{display:none}
details.lvl summary::after{content:'▾';color:var(--g4);margin-left:8px}
details.lvl[open] summary::after{content:'▴'}
.dlist,.kcg{display:flex;flex-direction:column}
.drow,.krow{display:grid;grid-template-columns:40px 1fr auto;gap:10px;align-items:center;padding:9px 4px;border-top:1px solid var(--line);text-decoration:none;color:var(--ink)}
.dlist .drow:first-child{border-top:0}
.dnum,.knum{font-weight:700;font-size:14px;color:var(--g4);text-align:center}
.dtitle,.ktitle{font-size:14px;line-height:1.3;min-width:0}
.dtitle small,.ktitle small{display:block;color:var(--g4);font-size:11.5px;margin-top:1px}
.dst,.kst{font-size:12px;font-weight:700;white-space:nowrap;border-radius:99px;padding:3px 9px;background:var(--g1);color:var(--g4)}
.dst.done,.kst.done{background:var(--blue-soft);color:var(--blue)}
.dst.hist{background:#8C8CFF22;color:var(--blue-mid)}
.dst.next,.kst.next{background:var(--blue);color:#fff}
.kst.low{background:#C98A061f;color:var(--warn)}
.dst.skip,.kst.skip{background:transparent;border:1px dashed var(--g3)}
.drow.next,.krow.next{background:var(--blue-soft);border-radius:10px}
.drow.done .dnum,.krow.done .knum{color:var(--blue)}
.drow.locked{opacity:.55}
.drow.skip,.krow.skip{opacity:.7}
.kcg .spread{margin-bottom:4px}
.pnum{font-size:22px;color:var(--blue)}
.bar.thick{height:12px}
.big-prog{border:1.5px solid var(--blue)}
.lvbars{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:12px}
.lvbars div{display:flex;flex-direction:column;gap:4px;font-size:11px;font-weight:700;color:var(--g4)}
.badges.big{grid-template-columns:repeat(3,1fr);gap:10px}
.badges.big .badge{background:var(--g1);border-radius:14px;padding:10px 6px;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11.5px}
.badges.big .badge.on{background:var(--blue-soft)}
.badges.big .badge i{margin:0}
.badges.big em{font-style:normal;font-size:10.5px;color:var(--g4)}
.badges.big .badge.on em{color:var(--blue);font-weight:700}
.bar.tiny{height:4px;width:80%}
@media (min-width:700px){.passage{padding:20px 22px}.passage p{font-size:16px}}
.passage h4{margin:14px 0 6px;font-size:15px;font-weight:700;color:var(--blue)}
.passage h3+h4{margin-top:4px}
.res-card.empty{border-style:dashed}
.res-card .btn.sm{margin-top:0}

/* v11: account icon, workbook */
.acct{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--blue-soft);color:var(--blue)}
.acct svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.hello{font-size:20px;font-weight:600;margin:-4px 0 10px}
.wbook .kc-t{font-size:18px}
.wbook.soon{opacity:.6;border-style:dashed}
.wb-pager{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:8px 0}
.wb-pager .btn.dis{opacity:.35;pointer-events:none}
.wb-go{display:flex;align-items:center;gap:6px}
.wb-go input{width:64px;padding:7px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;font-size:16px;text-align:center}
.wb-page{position:relative;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.06)}
.wb-page img{display:block;width:100%;height:auto}
.wb-page .pl{position:absolute;display:block;border-radius:4px}
.wb-page .pl:focus-visible{outline:2px solid var(--blue)}
.wb-tip{text-align:center;margin-top:6px}
.wb-h{margin:18px 0 4px}
.wb-ex .qt{font-weight:600;margin:4px 0 8px}
.wb-item{padding:8px 0;border-top:1px solid var(--line)}
.wb-item label{display:flex;gap:8px;font-size:14px;margin-bottom:6px;line-height:1.35}
.wb-id{flex:none;min-width:22px;height:22px;border-radius:7px;background:var(--blue-soft);color:var(--blue);font-weight:700;font-size:12px;display:grid;place-items:center;padding:0 5px}
.wb-in{width:100%;padding:10px 12px;border-radius:10px;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;font-size:16px}
.wb-in:focus{border-color:var(--blue);outline:none}
textarea.wb-in{resize:vertical;min-height:70px}
.wb-opts .opt{padding:8px 14px}
.wb-st{color:var(--blue);font-weight:600}
.wb-ans{display:inline-block;margin-top:10px;font-size:12.5px;font-weight:700;color:var(--blue);border:1.5px solid var(--blue);border-radius:99px;padding:4px 12px;text-decoration:none}
.wb-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px}
.wb-actions .wb-ans{margin-top:0}
.wb-item.wb-ok .wb-in,.wb-item.wb-ok .opt.sel{border-color:var(--ok);background:#1F9D6314;color:var(--ink)}
.wb-item.wb-bad .wb-in,.wb-item.wb-bad .opt.sel{border-color:var(--bad);background:#D1434312;color:var(--ink)}
.wb-fb{font-size:13px;margin-top:6px;line-height:1.45}
.wb-item.wb-ok .wb-fb>b{color:var(--ok)}.wb-item.wb-bad .wb-fb>b:first-child{color:var(--bad)}
.wb-item.wb-open .wb-fb b{color:var(--blue)}.wb-item.wb-empty .wb-fb b{color:var(--warn)}
.wb-score{margin-top:10px;padding:10px 12px;border-radius:12px;background:var(--g1);font-size:14px}
.wb-score.all{background:#1F9D631a}
/* workbook v13: slide + full exercise content */
.wb-slider{overflow:hidden;border-radius:10px}
.wb-slider .wb-page{touch-action:pan-y pinch-zoom;will-change:transform;user-select:none;-webkit-user-select:none}
.wb-page.in-r{animation:wbInR .2s ease-out}.wb-page.in-l{animation:wbInL .2s ease-out}
@keyframes wbInR{from{transform:translateX(60%);opacity:.4}to{transform:none;opacity:1}}
@keyframes wbInL{from{transform:translateX(-60%);opacity:.4}to{transform:none;opacity:1}}
@media (prefers-reduced-motion:reduce){.wb-page.in-r,.wb-page.in-l{animation:none}}
.wb-skill{display:inline-block;font-size:10px;letter-spacing:.06em;padding:1px 6px;border-radius:99px;background:var(--line);color:var(--g4);vertical-align:middle;margin-left:4px}
.wb-pt{font-size:13px;color:var(--g4);font-style:italic;margin:-4px 0 10px}
.wb-split{font-size:13px;background:color-mix(in srgb,var(--warn) 12%,var(--bg));border:1px solid color-mix(in srgb,var(--warn) 45%,var(--bg));border-radius:8px;padding:8px 10px;margin:0 0 10px}
.wb-note{font-size:13px;color:var(--g4);margin:0 0 10px}
.wb-text{background:var(--blue-soft);border-left:3px solid var(--blue);border-radius:6px;padding:10px 12px;margin:0 0 12px;font-size:14px;line-height:1.55}
.wb-text p{margin:0 0 8px}.wb-text p:last-child{margin:0}
.wb-tt{font-weight:700;margin-bottom:6px}
.wb-gap{display:inline-block;min-width:28px;padding:0 6px;border-bottom:2px solid var(--blue);color:var(--blue);font-weight:700;font-size:12px;text-align:center}
.wb-box{border:1.5px dashed var(--blue);border-radius:8px;padding:8px 10px;margin:0 0 12px}
.wb-box>div{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.wb-box span:not(.label){background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2px 8px;font-size:14px}
.wb-match{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:4px 12px;background:var(--blue-soft);border-radius:8px;padding:8px 12px;margin:0 0 12px;font-size:14px}
.wb-match b{color:var(--blue);margin-right:4px}
.wb-exm{font-size:13px;margin:0 0 10px;color:var(--g4)}
.wb-fig{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:#fff;margin:0 0 12px}
.wb-fig img{display:block;max-width:none;height:auto}
.wbook.locked{opacity:.9}.wb-lock{font-size:22px}
/* streak ranking */
.rankline{display:flex;align-items:center;gap:8px;justify-content:space-between;background:var(--blue-soft);border-radius:12px;padding:10px 14px;margin:10px 0;color:inherit;text-decoration:none;font-size:14px}
.rankline span:first-of-type{flex:1}
.rk-in{width:100%;font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:inherit;margin-top:4px}
.rk-av{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.rk-av button{width:40px;height:40px;font-size:20px;border-radius:10px;border:1.5px solid var(--line);background:var(--bg);cursor:pointer}
.rk-av button.on{border-color:var(--blue);background:var(--blue-soft)}
.rk-ok{display:flex;gap:8px;align-items:flex-start;font-size:13px;margin-top:12px}
.rk-ok input{margin-top:3px}
.rk-tabs{display:flex;gap:6px;margin:10px 0 8px}
.rk-tabs button{flex:1;padding:8px;border-radius:99px;border:1.5px solid var(--line);background:var(--bg);color:inherit;font:inherit;font-weight:600;cursor:pointer}
.rk-tabs button[aria-selected="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
.rk-list{list-style:none;margin:0;padding:0}
.rk-list li{display:flex;align-items:center;gap:10px;padding:8px 6px;border-bottom:1px solid var(--line)}
.rk-list li.me{background:var(--blue-soft);border-radius:10px}
.rk-list li b{white-space:nowrap}
.rk-gap{justify-content:center;color:var(--g4)}
.rk-pos{width:28px;text-align:center;font-weight:700}
.rk-a{font-size:20px}
.rk-n{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}
.rk-team,.rk-you{font-style:normal;font-size:10px;letter-spacing:.05em;text-transform:uppercase;padding:1px 6px;border-radius:99px;background:var(--line);color:var(--g4);margin-left:4px}
.rk-you{background:var(--blue);color:#fff}
.rk-edit{margin-top:10px;font-size:14px}
.rk-edit summary{cursor:pointer;color:var(--g4)}
/* Irregular verbs (extra) — same look as the Simply PDF list */
.ivcard{display:flex;align-items:center;gap:12px;background:linear-gradient(135deg,#0A1A8C,#111827);border-color:transparent;color:#fff}
.ivcard .label,.ivcard .muted{color:#C7CEF5}.iv-ic{font-size:26px}.iv-go{font-size:24px;color:#9DB6FF}
.iv-search{display:flex;gap:8px;margin-top:6px}.iv-search input{flex:1;min-width:0;padding:12px 13px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;font-size:16px}
.iv-res{margin-top:12px;border-radius:16px;overflow:hidden;background:#0B0D12;color:#fff;border:1px solid #1F2433}
.iv-forms{display:grid;grid-template-columns:repeat(3,1fr)}.iv-forms>div{padding:10px 8px;text-align:center;border-right:1px solid #fff2}.iv-forms>div:last-child{border:0}
.iv-forms .iv-k{display:block;font-size:10.5px;font-weight:700;padding:4px 2px;margin:-10px -8px 8px;background:#3D74D9}.iv-forms .ps .iv-k{background:#0A1A8C}
.iv-forms b{font-size:17px;word-break:break-word}
.iv-tr{display:grid;gap:1px;background:#fff2;border-top:1px solid #fff2}.iv-tr>div{display:grid;grid-template-columns:26px 1fr;column-gap:6px;padding:9px 12px;background:#12151D}
.iv-tr span{grid-row:span 2;font-size:19px;line-height:1.2}.iv-tr small{font-size:10.5px;color:#9BA3B4;letter-spacing:.04em}.iv-tr b{font-weight:600;font-size:14.5px}
.iv-more{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.iv-chip{border:1px solid var(--line);background:var(--bg);color:var(--blue);border-radius:99px;padding:5px 11px;font:inherit;font-size:13px;font-weight:600}
.iv-book{overflow:hidden;margin-top:14px;border-radius:14px;touch-action:pan-y}
.iv-sheet{background:radial-gradient(circle at 0 12%,#2f63d966 0,transparent 22%),radial-gradient(circle at 100% 96%,#2f63d966 0,transparent 22%),linear-gradient(180deg,#121a33,#07080c 55%,#0d1222);color:#fff;padding:18px 12px 12px;border-radius:14px}
.iv-sheet.in-r{animation:wbInR .2s ease-out}.iv-sheet.in-l{animation:wbInL .2s ease-out}
.iv-head{text-align:center}.iv-head img{height:34px;width:auto}.iv-sub{font-size:8.5px;letter-spacing:.2em;color:#C9CDD6;margin-top:-2px}
.iv-head h1{font-size:19px;line-height:1.25;margin:12px 0 12px;font-weight:800}
.iv-t{width:100%;border-collapse:collapse;table-layout:fixed;font-size:13.5px}
.iv-t th,.iv-t td{border:1.5px solid #fff;padding:6px 8px;text-align:left;word-break:break-word}
.iv-t th{background:#3D74D9;font-size:12px;text-align:center}.iv-t th.ps{background:#0A1A8C}
.iv-t td{background:#0B0B0D;font-weight:700}.iv-t tr[data-iv]{cursor:pointer}.iv-t tr[data-iv]:active td,.iv-t tr[data-iv]:focus-visible td{background:#1B2A5E}
.iv-foot{display:flex;justify-content:space-between;font-weight:700;font-size:12px;margin-top:8px}
@media (prefers-reduced-motion:reduce){.iv-sheet.in-r,.iv-sheet.in-l{animation:none}}