:root{--bg:#f5f6fb;--card:#fff;--fg:#161a33;--mut:#6b7280;--bd:#e7e9f2;--pri:#3b4cca;--acc:#3b4cca;--sh:0 1px 2px #1b214a0d,0 8px 24px #1b214a10}
@media(prefers-color-scheme:dark){:root{--bg:#0e1020;--card:#171a30;--fg:#eef0fb;--mut:#a0a8c0;--bd:#262b4a;--sh:none}}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI","Noto Sans Bengali",Roboto,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--acc);text-decoration:none}main{max-width:980px;margin:auto;padding:20px 16px 40px}h1{font-size:1.7rem;margin:.3em 0}h2{font-size:1.2rem;margin:1.6em 0 .6em}h3{margin:.3em 0}
.top{display:flex;align-items:center;gap:16px;padding:10px 20px;background:var(--card);border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:10}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--fg);font-size:1.1rem}.mark{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--pri),#8b5cf6);color:#fff;display:grid;place-items:center;font-size:1rem}
.tabs{display:flex;gap:4px;margin-left:16px}.tabs a{padding:7px 16px;border-radius:99px;color:var(--mut);font-weight:600}.tabs a.on{background:var(--pri);color:#fff}
.me{margin-left:auto;display:flex;gap:10px;align-items:center;font-size:.9rem}.pill{background:var(--bg);border:1px solid var(--bd);border-radius:99px;padding:2px 12px;font-size:.85rem}
.sub{display:flex;gap:6px;overflow-x:auto;padding:10px 16px;max-width:980px;margin:auto}.sub a{white-space:nowrap;padding:6px 14px;border-radius:99px;border:1px solid var(--bd);background:var(--card);color:var(--fg);font-size:.92rem}.sub a.on{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.card{background:var(--card);border:1px solid var(--bd);border-radius:18px;padding:18px;box-shadow:var(--sh)}.narrow{max-width:420px;margin:30px auto}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}.grid2{display:grid;grid-template-columns:1.4fr 1fr;gap:14px}
a.card{display:block;color:var(--fg);transition:transform .15s,box-shadow .15s}a.card:hover{transform:translateY(-2px)}
.badge{width:44px;height:44px;border-radius:13px;background:var(--acc);color:#fff;display:inline-grid;place-items:center;font-weight:800;font-size:1.15rem;flex:none}
.hd{display:flex;gap:14px;align-items:center;margin-bottom:8px}.hd p{margin:0}
.cat h3{margin:10px 0 2px}.cat p{margin:0 0 8px;color:var(--mut);font-size:.92rem}.cat{border-top:4px solid var(--acc)}
.heroc{background:linear-gradient(135deg,#3b4cca,#7c3aed);color:#fff;border:0}.heroc small{opacity:.85}.heroc .btn{background:#fff;color:#3b4cca}
.hero{text-align:center;padding:48px 16px}.hero h1{font-size:2.2rem;max-width:680px;margin:0 auto .4em}.hero p{color:var(--mut);max-width:560px;margin:0 auto 18px}
.btn{background:var(--acc);color:#fff;border:0;border-radius:12px;padding:10px 20px;font:inherit;font-weight:600;cursor:pointer;display:inline-block;margin:4px 2px}.btn.ghost{background:transparent;color:var(--acc);border:2px solid var(--acc)}.btn.rec{background:#e11d48}.btn.sm{padding:6px 14px;font-size:.9rem}.btn:disabled{opacity:.5}
.msg,small{color:var(--mut)}.bad{color:#dc2626}label{display:block;margin:10px 0;font-weight:600}
input,textarea,select{width:100%;padding:10px 12px;border:1px solid var(--bd);border-radius:12px;background:var(--bg);color:var(--fg);font:inherit}textarea{resize:vertical}
.bar{height:7px;background:var(--bd);border-radius:9px;overflow:hidden;margin:8px 0}.bar i{display:block;height:100%;background:var(--acc);width:0;transition:width .3s}
.say{background:none;border:0;cursor:pointer;color:var(--acc);padding:2px 6px;font:inherit;font-size:.9rem}.say::before{content:"";display:inline-block;width:1.05em;height:1.05em;vertical-align:-.18em;margin-right:3px;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 9v6h4l5 4V5L7 9H3zm13.5 3A4.5 4.5 0 0 0 14 8v8a4.5 4.5 0 0 0 2.5-4zM14 3.2v2.1a7 7 0 0 1 0 13.4v2.1a9 9 0 0 0 0-17.6z'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 9v6h4l5 4V5L7 9H3zm13.5 3A4.5 4.5 0 0 0 14 8v8a4.5 4.5 0 0 0 2.5-4zM14 3.2v2.1a7 7 0 0 1 0 13.4v2.1a9 9 0 0 0 0-17.6z'/%3E%3C/svg%3E") center/contain no-repeat}
.starter{font-size:.92rem;color:var(--mut);margin:3px 0}.slot b{color:var(--acc)}
.tabs2{display:flex;gap:6px;overflow-x:auto;border-bottom:1px solid var(--bd);margin:10px 0 16px}.tabs2 button{background:none;border:0;border-bottom:3px solid transparent;padding:10px 14px;font:inherit;font-weight:600;color:var(--mut);cursor:pointer;white-space:nowrap}.tabs2 button.on{color:var(--acc);border-color:var(--acc)}
.model .beat,.beat{border-left:5px solid;padding:8px 14px;margin:10px 0;background:var(--card);border-radius:0 14px 14px 0}.beat p{margin:4px 0}
.tag{font-size:.7rem;font-weight:700;text-transform:uppercase;color:var(--mut);letter-spacing:.04em}.hl{background:#fde68a;color:#1b1f2a;border-radius:4px;padding:0 4px}
.b0{border-color:#6366f1;--c:#6366f1}.b1{border-color:#0ea5e9;--c:#0ea5e9}.b2{border-color:#10b981;--c:#10b981}.b3{border-color:#f59e0b;--c:#f59e0b}.b4{border-color:#ec4899;--c:#ec4899}.b5{border-color:#8b5cf6;--c:#8b5cf6}
input.gap{display:inline-block;width:auto;padding:1px 6px;border:0;border-bottom:2px dashed var(--acc);border-radius:0;background:transparent}input.gap.ok{background:#bbf7d0;color:#14532d}input.gap.no{background:#fecaca;color:#7f1d1d}
.sent{padding:12px;border:2px solid var(--bd);border-radius:14px;margin:8px 0;cursor:pointer}.sent.sel{border-color:var(--acc)}.sent.good{border-color:#16a34a;background:#16a34a1f}.sent.miss{border-color:#f59e0b;background:#f59e0b1f}.sent.fine{border-color:#0ea5e9;background:#0ea5e91f}.sent em{display:block;font-size:.9rem;color:var(--mut);font-style:normal}
.list .row{display:flex;justify-content:space-between;margin:8px 0}.cue{border-left:6px solid var(--acc)}.cue ul{margin:.3em 0}
.steps3{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:14px 0}.steps3 b{color:var(--acc)}
.beats{display:grid;grid-template-columns:repeat(auto-fit,minmax(125px,1fr));gap:8px}.chip{border:2px solid;border-radius:12px;padding:6px 10px;opacity:.4;transition:.2s}.chip.on{opacity:1;background:var(--c);color:#fff}.chip small{display:block;font-size:.7rem;color:inherit}
.clock{font-size:3.4rem;font-weight:800;text-align:center;font-variant-numeric:tabular-nums}.ctl{text-align:center}.live{min-height:40px;color:var(--mut);font-style:italic}
.stats{display:flex;gap:10px;flex-wrap:wrap}.stats div{background:var(--bg);border-radius:12px;padding:8px 16px;color:var(--mut)}.stats b{font-size:1.3rem;display:block;color:var(--fg)}#checks label{font-weight:400}#checks input{width:auto;margin-right:8px}
.filters,.steps{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}.chip2,.stp{border:1px solid var(--bd);border-radius:99px;padding:5px 14px;background:var(--card);color:var(--fg);cursor:pointer;font:inherit;font-size:.92rem}.chip2.on,.stp.on{background:var(--acc);color:#fff;border-color:var(--acc)}.stp.done{border-color:#16a34a}
.chp{border:1px solid var(--bd);background:var(--bg);color:var(--fg);border-radius:99px;padding:3px 11px;margin:3px;cursor:pointer;font-size:.85rem}.chp:hover{border-color:var(--acc)}.chp.sw{background:#fef9c3;color:#1b1f2a}
.wc{color:var(--mut)}.wc.ok{color:#16a34a;font-weight:700}.warn{display:block;color:#b45309}.preview .pv{border-bottom:3px solid var(--c)}
.path{background:var(--card);border-left:5px solid var(--acc);margin:12px 0}.opt{display:block;width:100%;text-align:left;margin:6px 0}
.sentrow{display:flex;gap:8px;align-items:flex-start;flex-wrap:wrap;padding:12px 0;border-bottom:1px solid var(--bd)}.sentrow>div{flex:1;min-width:240px}.q h3{margin:.2em 0}details summary{cursor:pointer;color:var(--acc);margin:6px 0}
.mini{border:1px solid var(--bd);background:var(--bg);color:var(--fg);border-radius:10px;padding:4px 12px;cursor:pointer;font:inherit;font-size:.85rem}.mini.on{background:var(--acc);color:#fff;border-color:var(--acc)}
table{width:100%;border-collapse:collapse}td,th{padding:8px;border-bottom:1px solid var(--bd);text-align:left;font-size:.9rem}
.tools{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin:10px 0}.tools input[type=text],.tools #psearch{max-width:260px}.tools label{display:flex;gap:6px;align-items:center;margin:0;font-weight:500}.tools input[type=checkbox]{width:auto}
.words{display:grid;gap:10px}.word{background:var(--card);border:1px solid var(--bd);border-radius:16px;padding:14px 16px;border-left:5px solid var(--acc)}.word .w1{display:flex;align-items:center;gap:6px}.word .w1 b{font-size:1.1rem}.word .mean{margin-top:2px}.word .bn{color:var(--acc);font-weight:600}.word .ex{color:var(--mut);font-style:italic}.word .pst{margin-top:8px;display:flex;gap:6px}
.nobn .bn{display:none}.test .word:not(.show) .mean,.test .word:not(.show) .bn,.test .word:not(.show) .ex{filter:blur(7px);user-select:none}
.up .ul{padding:8px 12px;margin:6px 0;border-radius:12px;background:var(--bg)}.up .lv{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;background:var(--acc);color:#fff;border-radius:6px;padding:1px 7px;margin-right:6px}
@media(max-width:720px){.grid2{grid-template-columns:1fr}.hero h1{font-size:1.7rem}.top{padding:10px 14px}.tabs{position:fixed;left:0;right:0;bottom:0;margin:0;background:var(--card);border-top:1px solid var(--bd);justify-content:space-around;padding:6px 6px max(8px,env(safe-area-inset-bottom));z-index:20}.tabs a{flex:1;text-align:center;padding:8px 4px;border-radius:12px}main{padding-bottom:90px}.me .xp,.me .out{display:none}}