.toolbar{flex-wrap:wrap;align-items:center;gap:12px;margin:20px 0;display:flex}.seg{background:#eef3f7;border-radius:13px;gap:4px;padding:4px;display:inline-flex}.seg-btn{color:var(--muted);background:0 0;border:0;border-radius:10px;padding:8px 14px;font-weight:800}.seg-btn.active{color:var(--navy);background:#fff;box-shadow:0 4px 12px #17324d14}.card{position:relative}.mascot{width:64px;height:64px;color:var(--navy);background:#fff;border-radius:20px;place-items:center;font-size:2rem;transition:transform .25s;display:grid;position:absolute;top:20px;right:20px;box-shadow:inset 0 0 0 3px #ffffff59}.eyebrow{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;justify-content:space-between;align-items:center;font-size:.78rem;font-weight:800;display:flex}.pills{gap:6px;display:flex}.pill{background:var(--sky);color:var(--navy);text-transform:none;border-radius:999px;padding:3px 9px;font-size:.72rem;font-weight:800}.pill.new{background:var(--sky)}.pill.learning{background:var(--meh-bg);color:var(--meh)}.pill.review{color:var(--blue);background:#eef3f7}.pill.mastered{background:var(--good-bg);color:var(--good)}.question{letter-spacing:-.01em;margin:14px 0 18px;font-size:1.4rem;line-height:1.4}.answers{gap:10px;display:grid}.opt{text-align:left;border:1.5px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:14px;align-items:center;gap:12px;padding:13px 15px;font-weight:600;transition:border-color .15s,background .15s;display:flex}.opt:not(:disabled):hover{border-color:var(--blue);background:var(--sky)}.opt .letter{background:var(--sky);width:28px;height:28px;color:var(--navy);border-radius:8px;flex-shrink:0;place-items:center;font-size:.85rem;font-weight:900;display:grid}.opt.correct{background:var(--good-bg);color:#0d6738;border-color:#54ad7e;animation:.6s ease-out correctPulse}.opt.wrong{background:var(--bad-bg);color:#8a2c24;border-color:#d98b83;animation:.42s wrongShake}.feedback{border:1px solid var(--line);background:#fbfcfd;border-radius:14px;margin-top:16px;padding:14px 16px;font-size:.92rem;line-height:1.55}.feedback.info{background:var(--sky);border-color:#cfe4f5}.feedback.good{background:var(--good-bg);border-color:#b6e2c8}.feedback.bad{background:var(--bad-bg);border-color:#eac7c1}.feedback strong{margin-bottom:4px;display:block}.card-hist{color:var(--muted);flex-wrap:wrap;align-items:center;gap:4px;margin-top:10px;font-size:.8rem;display:flex}.queued{color:var(--blue);margin-top:10px;font-size:.82rem;font-weight:700}.queued.done{color:var(--good)}.card-footer{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:20px;display:flex}.progress-text{color:var(--muted);font-size:.82rem;font-weight:700}.footer-actions{gap:8px;display:flex}.side h2{color:var(--navy);margin:0 0 10px;font-size:1.05rem}.stats{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.stat .num{color:var(--navy);font-size:1.5rem;font-weight:900}.stat .label{color:var(--muted);font-size:.78rem;font-weight:700}.bar{background:#e9eef2;border-radius:999px;height:12px;margin:14px 0 6px;overflow:hidden}.bar>div{background:linear-gradient(90deg, var(--blue), #56a36c);height:100%;transition:width .3s}.mode-info{color:var(--muted);margin-top:6px;font-size:.82rem;line-height:1.45}.topic-list{gap:9px;margin-top:14px;display:grid}.topic-row{border-bottom:1px solid #edf0f3;grid-template-columns:1fr auto;align-items:center;gap:10px;padding:10px 0;display:grid}.topic-row:last-child{border-bottom:0}.topic-name{font-size:.88rem;font-weight:750}.topic-score{color:var(--muted);align-items:center;gap:4px;font-size:.8rem;font-weight:800;display:flex}.dot{border-radius:50%;width:8px;height:8px;margin:0 2px 0 6px;display:inline-block}.dot.ok{background:var(--good)}.dot.bad{background:var(--bad)}.hist-list{gap:6px;max-height:240px;margin-top:10px;display:grid;overflow:auto}.hist-item{background:#fbfcfd;border:1px solid #eef1f4;border-radius:10px;align-items:flex-start;gap:9px;padding:7px 9px;font-size:.82rem;display:flex}.hist-item .h-mark{font-size:.9rem;font-weight:900}.hist-item.ok .h-mark{color:#2f9e63}.hist-item.bad .h-mark{color:#d4615a}.hist-item.meh .h-mark{color:var(--gold)}.hist-item .h-q{line-height:1.3}.hist-item .h-meta{color:var(--muted);margin-top:1px;font-size:.74rem}#confetti-layer{pointer-events:none;z-index:9999;position:fixed;inset:0;overflow:hidden}.confetti{will-change:transform, opacity;transition:transform 1.15s cubic-bezier(.18,.6,.32,1),opacity 1.15s linear;position:absolute}#streak-toast{background:var(--navy);color:#fff;box-shadow:var(--shadow);opacity:0;pointer-events:none;z-index:10000;border-radius:999px;padding:10px 20px;font-weight:900;transition:opacity .25s,transform .25s;position:fixed;top:18px;left:50%;transform:translate(-50%,-22px)}#streak-toast.show{opacity:1;transform:translate(-50%)}.card.pop{animation:.52s ease-out pop}@keyframes pop{0%{transform:scale(1)}45%{transform:scale(1.025)}to{transform:scale(1)}}.card.shake{animation:.54s shake}@keyframes shake{0%,to{transform:translate(0)}15%{transform:translate(-9px)}30%{transform:translate(9px)}45%{transform:translate(-6px)}60%{transform:translate(6px)}75%{transform:translate(-3px)}}@keyframes correctPulse{0%{box-shadow:0 0 #54ad7e8c}to{box-shadow:0 0 0 16px #54ad7e00}}@keyframes wrongShake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}.mascot.celebrate{animation:.92s ease-out celebrate}@keyframes celebrate{0%{transform:rotate(0)scale(1)}25%{transform:rotate(-14deg)scale(1.2)}50%{transform:rotate(11deg)scale(1.2)}75%{transform:rotate(-6deg)scale(1.1)}to{transform:rotate(0)scale(1)}}.mascot.sad{animation:.92s ease-in-out sad}@keyframes sad{0%{transform:translateY(0)rotate(0)}30%{transform:translateY(7px)rotate(-9deg)}60%{transform:translateY(7px)rotate(9deg)}to{transform:translateY(0)rotate(0)}}@media (prefers-reduced-motion:reduce){.card.pop,.card.shake,.opt.correct,.opt.wrong,.mascot.celebrate,.mascot.sad,.confetti{transition:none!important;animation:none!important}}@media (width<=520px){.stats{grid-template-columns:1fr 1fr}.toolbar{align-items:stretch}.toolbar .btn,.seg{width:100%}.footer-actions{flex-direction:column;width:100%}.footer-actions .btn{width:100%}.mascot{display:none}}:root{--navy:#17324d;--blue:#2f6ea5;--sky:#e9f4ff;--paper:#fffdf8;--ink:#17212b;--muted:#65717d;--line:#d9e1e8;--good:#147a45;--good-bg:#e9f8ef;--bad:#a43b31;--bad-bg:#fff0ed;--gold:#f0b44d;--meh:#b07d12;--meh-bg:#fdf3df;--shadow:0 16px 45px #17324d1f;color:var(--ink);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{background:linear-gradient(#edf6ff 0,#f7f9fb 45%,#fffdf8 100%);min-height:100vh;margin:0}a{color:var(--blue)}button{cursor:pointer;font:inherit}.app{max-width:1120px;margin:auto;padding:24px}.topnav{align-items:center;gap:14px;max-width:1120px;margin:0 auto;padding:18px 24px 0;font-weight:800;display:flex}.topnav a{color:var(--navy);text-decoration:none}.topnav .brand{letter-spacing:-.02em;font-size:1.1rem}.topnav .crumb{color:var(--muted);font-size:.9rem;font-weight:700}.panel{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:24px}.grid{grid-template-columns:1fr 360px;align-items:start;gap:20px;display:grid}.btn{border:0;border-radius:13px;padding:11px 16px;font-weight:800;transition:transform .18s,opacity .18s,background .18s}.btn:hover{transform:translateY(-1px)}.btn.primary{background:var(--navy);color:#fff}.btn.secondary{color:var(--navy);border:1px solid var(--line);background:#fff}.btn.good{background:var(--good);color:#fff}.btn.bad{background:var(--bad);color:#fff}.hidden{display:none!important}@media (width<=800px){.grid{grid-template-columns:1fr}.app{padding:14px}.panel{border-radius:20px}}.prose h1{color:var(--navy);margin-top:0;font-size:1.8rem}.prose h2{color:var(--navy);margin-top:1.6em;font-size:1.3rem}.prose h3{color:var(--navy);margin-top:1.3em;font-size:1.1rem}.prose p,.prose li{color:var(--ink)}.prose table{border-collapse:collapse;width:100%;margin:14px 0;font-size:.9rem}.prose th,.prose td{border:1px solid var(--line);text-align:left;padding:7px 10px}.prose th{background:var(--sky);color:var(--navy)}.prose code{background:#eef3f7;border-radius:5px;padding:1px 5px;font-size:.88em}.prose blockquote{border-left:3px solid var(--blue);background:var(--sky);color:var(--navy);border-radius:0 10px 10px 0;margin:14px 0;padding:6px 16px}
