:root{--bg:#f6f7f4;--card:#fff;--ink:#1f2933;--mute:#6b7785;--line:#e3e7e2;--pri:#2f7d5b;--pri-d:#245f46;--pri-l:#e4f2ea;--acc:#d97706;--new:#2563eb;--learn:#dc2626;--rev:#16a34a;--hl:#fff3c4;--tr:#eef4ff;--trb:#c9dafc}
@media (prefers-color-scheme:dark){:root{--bg:#141a17;--card:#1d2621;--ink:#e8eee9;--mute:#9aa9a0;--line:#2d3a33;--pri:#5cc08f;--pri-d:#8fd9b3;--pri-l:#22352b;--hl:#4a4212;--tr:#1d2a44;--trb:#34507f}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--pri)}
.top{position:sticky;top:0;z-index:20;background:var(--pri);color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.top .row{max-width:920px;margin:0 auto;padding:8px 14px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.top a{color:#fff;text-decoration:none}
.top .brand{font-weight:700;flex:1;min-width:160px}
.top .nav a{padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.18);font-size:.9rem;margin-left:4px;white-space:nowrap}
.tabs{max-width:920px;margin:0 auto;padding:0 14px 8px;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
.tabs a{flex:none;font-size:.85rem;padding:3px 11px;border-radius:999px;background:rgba(255,255,255,.14)}
.tabs a:hover,.top .nav a:hover{background:rgba(255,255,255,.3)}
main{max-width:920px;margin:0 auto;padding:18px 14px 60px}
h1{font-size:1.7rem;margin:.2em 0 .1em}
h2{font-size:1.35rem;margin:1.6em 0 .5em;padding-bottom:.25em;border-bottom:3px solid var(--pri-l);color:var(--pri-d);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
h2 small{font-size:.8rem;font-weight:400;color:var(--mute)}
h3{font-size:1.05rem;margin:1.2em 0 .4em;color:var(--pri-d)}
h3.scene{background:var(--pri-l);padding:5px 12px;border-radius:8px;font-size:.95rem;letter-spacing:.02em}
.sub{color:var(--mute);margin:0 0 .8em}
.tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:10px 0 4px}
.btn{font:inherit;font-size:.9rem;cursor:pointer;border:1px solid var(--line);background:var(--card);color:var(--ink);padding:6px 12px;border-radius:999px;display:inline-flex;gap:6px;align-items:center;text-decoration:none}
.btn:hover{border-color:var(--pri)}
.btn.pri{background:var(--pri);border-color:var(--pri);color:#fff}
.btn.on{background:var(--pri-l);border-color:var(--pri)}
label.sw{display:inline-flex;gap:6px;align-items:center;font-size:.9rem;cursor:pointer;user-select:none}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:8px 0}
.u{padding:7px 10px;margin:5px 0;border-radius:10px;background:var(--card);border:1px solid var(--line)}
.u .eo{margin:0;font-size:1.05rem}
.who{font-weight:700;color:var(--pri-d);margin-right:.35em}
.fz{cursor:pointer;border-radius:5px;padding:0 2px;transition:background .15s;-webkit-tap-highlight-color:transparent}
.fz:hover{background:var(--pri-l)}
.fz.playing{background:var(--hl)}
.u .trbtn{display:none;margin-top:5px;font:inherit;font-size:.82rem;border:1px solid var(--trb);background:var(--tr);color:inherit;border-radius:999px;padding:2px 10px;cursor:pointer}
.u.armed .trbtn{display:inline-block}
.show-tr .u .trbtn{display:none}
.u .tr{display:none;margin:6px 0 0;padding:6px 10px;background:var(--tr);border-left:4px solid var(--trb);border-radius:6px;font-size:.98rem}
.u.open .tr,.show-tr .u .tr{display:block}
.u.ex{padding:5px 10px;margin:4px 0}
.u.ex .eo{font-size:1rem}
.vlist{display:grid;grid-template-columns:1fr;gap:0}
.vg{font-weight:700;color:var(--pri-d);margin:14px 0 4px;font-size:.95rem}
.vrow{display:flex;gap:10px;align-items:baseline;padding:6px 8px;border-bottom:1px solid var(--line)}
.vrow:nth-child(odd){background:rgba(127,127,127,.05)}
.vrow .veo{flex:0 0 42%;font-weight:600;cursor:pointer}
.vrow .veo:hover{color:var(--pri)}
.vrow .vpt{flex:1}
.vrow .vpt small{color:var(--mute)}
.cover .vpt{filter:blur(7px);cursor:pointer}
.cover .vpt.rev{filter:none}
.pr{margin:.6em 0}
.pr.dl{margin:.25em 0}
hr.sep{border:0;border-top:1px dashed var(--line);margin:14px 0}
.gp{margin:.5em 0}
.grow{display:flex;flex-wrap:wrap;gap:6px 22px;margin:3px 0 3px 10px}
.gcell{min-width:200px}
.gcell .p{color:var(--mute)}
.ekz p{margin:.15em 0}
.ekz h4{margin:1em 0 .3em;color:var(--pri-d)}
details{margin:12px 0;border:1px solid var(--line);border-radius:10px;padding:8px 12px;background:var(--card)}
details summary{cursor:pointer;font-weight:600}
.mini{columns:2 240px;column-gap:24px;font-size:.95rem;margin:8px 0}
.mini div{break-inside:avoid;padding:2px 0;border-bottom:1px dotted var(--line)}
.note{font-size:.92rem;color:var(--mute)}
.pager{display:flex;justify-content:space-between;gap:10px;margin:30px 0 8px;flex-wrap:wrap}
footer{margin-top:40px;padding-top:14px;border-top:1px solid var(--line);font-size:.82rem;color:var(--mute)}
.lgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:12px;margin-top:14px}
.lcard{display:block;text-decoration:none;color:inherit;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;transition:.15s}
.lcard:hover{border-color:var(--pri);transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.08)}
.lcard b{color:var(--pri-d);font-size:1.05rem}
.lcard p{margin:.35em 0 0;font-size:.88rem;color:var(--mute)}
.lcard .cnt{margin-top:8px;font-size:.8rem}
.badge{display:inline-block;background:var(--pri-l);color:var(--pri-d);border-radius:999px;padding:1px 8px;margin-right:4px}
.video{position:relative;padding-top:56.25%;margin-top:10px}.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:10px}
/* ===== cartões ===== */
.deck{width:100%;border-collapse:collapse;background:var(--card);border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.deck th,.deck td{padding:10px 12px;text-align:right}
.deck th:first-child,.deck td:first-child{text-align:left}
.deck th{font-size:.8rem;color:var(--mute);border-bottom:1px solid var(--line);text-transform:uppercase;letter-spacing:.04em}
.deck tr.dk{cursor:pointer}
.deck tr.dk:hover{background:var(--pri-l)}
.n0{color:var(--mute)}.nn{color:var(--new);font-weight:700}.nl{color:var(--learn);font-weight:700}.nr{color:var(--rev);font-weight:700}
.study{max-width:720px;margin:0 auto}
.scount{display:flex;justify-content:center;gap:18px;font-weight:700;margin:6px 0 10px}
.scount span.cur{text-decoration:underline}
.face{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px 18px;min-height:230px;text-align:center;display:flex;flex-direction:column;justify-content:center;gap:10px}
.face .big{font-size:2.1rem;font-weight:700;line-height:1.25}
.face .ans{font-size:1.6rem;color:var(--pri-d);font-weight:600}
.face .nt{color:var(--mute);font-size:.95rem}
.face .exm{margin-top:8px;padding:8px 12px;background:var(--tr);border-radius:10px;font-size:.98rem;text-align:left}
.face .exm .eo{font-weight:600}
.face hr{width:100%;border:0;border-top:2px solid var(--line);margin:6px 0}
.spk{font:inherit;border:0;background:var(--pri-l);border-radius:999px;width:38px;height:38px;cursor:pointer;font-size:1.1rem;align-self:center}
.acts{display:flex;gap:8px;margin-top:14px}
.acts button{flex:1;font:inherit;font-weight:600;padding:10px 4px;border:0;border-radius:12px;cursor:pointer;color:#fff;line-height:1.2}
.acts button small{display:block;font-weight:400;opacity:.9;font-size:.75rem}
.acts .show{background:var(--pri);padding:14px}
.acts .b1{background:#dc2626}.acts .b2{background:#d97706}.acts .b3{background:#16a34a}.acts .b4{background:#2563eb}
.opts{display:grid;gap:10px;margin:14px 0}
.opts label{display:flex;gap:10px;align-items:center;justify-content:space-between;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:8px 12px}
.opts select{font:inherit;padding:4px;border-radius:6px}
.done{text-align:center;padding:40px 10px}
.done h2{border:0;justify-content:center}
@media (max-width:560px){body{font-size:16px}.vrow{flex-direction:column;gap:0}.vrow .veo{flex:none}.face .big{font-size:1.7rem}}
.adbar{background:#fff7e6;border-bottom:1px solid #f0d9a8;color:#5a4300;font-size:.9rem;text-align:center;padding:6px 40px;position:relative}.adbar a{color:inherit;font-weight:600;text-decoration:none}.adbar a:hover{text-decoration:underline}.adbar button{position:absolute;right:10px;top:50%;transform:translateY(-50%);border:0;background:transparent;font-size:1.3rem;cursor:pointer;color:inherit}@media (prefers-color-scheme:dark){.adbar{background:#3a2f12;border-color:#5a4718;color:#f3e2b3}}
.adbar .adt{margin-right:4px}.adbar .adl{display:inline-block;margin:2px 3px;padding:1px 10px;border-radius:999px;background:rgba(255,255,255,.75);font-weight:600;text-decoration:none}.adbar .adl:hover{background:#fff;text-decoration:none}@media (prefers-color-scheme:dark){.adbar .adl{background:rgba(255,255,255,.12)}}